Ritual Summoning

A Ritual Summon generally requires a Ritual Spell, a Ritual Monster in the hand, and a set of tributes whose combined Levels meet the Ritual Spell's requirement. The Ritual Spell's specific tribute wording determines which monsters can be offered.

Procedure

1. Activate the Ritual Spell that matches (or generically supports) the Ritual Monster you want to Summon.
2. On resolution: tribute monsters from your hand or your side of the field whose combined Levels satisfy the Ritual Spell's requirement.
3. Special Summon the Ritual Monster from your hand.

The Ritual Summon itself is a Summon, not an activated effect — it cannot be negated by effects that only negate Spell/Trap activations (Solemn Judgment negates the Ritual Spell's activation, not the Summon).

The Ritual Summon itself also cannot be negated by effects like Thunder King Rai-Oh's quick effect because the success of the summon happens as part of the resolution of the Ritual Spell's effect. Even if the Ritual Summon was the last thing that happened in the chain, Thunder King Rai-Oh cannot activate its quick effect because there is no valid activation window for it.

Ritual Spell text restricts tributes

Each Ritual Spell defines its own tribute pool. The pool can be narrowed by location (hand, field, Deck), by card category (Normal Monsters only), or by target Ritual Monster (only one specific Ritual Monster's name).

Advanced Ritual Art

"This card is used to Ritual Summon any 1 Ritual Monster. You must also send Normal Monsters from your Deck to the GY whose total Levels equal the Level of that Ritual Monster."

Two restrictions stack:

• Normal Monsters only — Effect Monsters in the Deck cannot be sent, even if their Levels would match. Pendulum Normal Monsters in the Deck are eligible.
• From the Deck — hand and field monsters cannot be used. The send is from the Deck specifically.

Dawn of the Herald

"This card is used to Ritual Summon 'Herald of Perfection'. You must also Tribute monsters from your hand or field whose total Levels equal exactly 6. When 'Herald of Perfection' is Ritual Summoned by this card's effect: You can banish this card from your Graveyard, then target 1 of the monsters in your Graveyard that was Tributed for that Ritual Summon; return that target to your hand."

Three constraints to flag:

• Locked to Herald of Perfection — cannot Ritual Summon any other Ritual Monster, even other Heralds.
• Levels must equal exactly 6 — over-tributing fails. Herald of Perfection itself is Level 6, so the tribute pool's combined Levels must hit 6 on the nose.
• Tributes come from hand or field only — not from the Deck (that's Advanced Ritual Art's pool, not this one).

The post-resolution recycle clause (banish from GY, return one tributed monster) is a separate optional Ignition that fires only when this exact card resolved the Ritual Summon.

Exact-total requirements exclude over-Level monsters entirely

When a Ritual Spell's tribute pool reads "whose total Levels equal exactly N", the combined Levels of every monster tributed must land on N with no overshoot. A monster whose own Level is greater than N can never be part of any legal tribute set for that Ritual Summon — no combination containing it can total exactly N. That monster cannot be Tributed for that Ritual Summon, full stop.

Do not soften this into "it is a legal tribute in principle but impossible in practice." A tribute that can never appear in a legal tribute set is not a legal tribute. When asked whether a specific monster can be Tributed for an exact-total Ritual Spell, compare its Level to the required total first: Level greater than the total means no.

By contrast, pools that read "equal N or more" let a single monster whose Level exceeds N be Tributed by itself. That does not mean you may pile on extra Tributes once the requirement is met — see the next section.

"Or more" pools still forbid redundant Tributes — minimality, not free overpay

"Equal to or greater than N" wording is permissive about which combination you use, not about how many monsters you throw in. The Ritual Summon procedure requires every monster you select as Tribute to be necessary: if any single monster could be dropped from your chosen set while the remaining total still meets N, that set is not a legal Tribute. There is no general "you may overpay" allowance in the TCG/OCG ruleset — only the cards that explicitly want a fixed count (not a threshold) sidestep this, and even those just substitute "exact count" for "exact total."

Equivalently: a legal Tribute set for an "N or more" requirement must satisfy both:

• total ≥ N, and
• removing any one monster from the set drops the total below N (no monster in the set is redundant).

Meteonis Drytron — "...You can also Ritual Summon any Ritual Monster from your hand or GY by Tributing Machine monsters from your hand and/or field, whose total ATK is equal to or greater than that Ritual Monster's ATK..."

Ritual Summoning a 0 ATK Ritual Monster with Meteonis Drytron cannot legally happen at all. The threshold is 0, and the empty Tribute already satisfies it: a total ATK of 0 (from Tributing nothing) is "equal to or greater than" 0. That means the requirement is met before any monster is ever selected, so every Machine monster you could Tribute — even just one — is redundant under the minimality rule, the same rule that forbids stacking extra monsters once a non-zero requirement is met. But Tributing zero monsters does not satisfy the Ritual Spell's own instruction to "Tribute Machine monsters" — declining to Tribute anything is not a legal way to resolve that instruction, it just fails to perform the Tribute at all. So neither option works: 0 monsters isn't a Tribute, and 1-or-more monsters is always surplus once 0 already cleared the bar. There is no legal Tribute size for this case, so Meteonis Drytron cannot be used to Ritual Summon a Ritual Monster with 0 ATK (or, by the same logic, a Ritual Monster whose ATK is met or exceeded by zero Tributes under any other "X or more" ATK/Level pool).

Contrast a non-trivial threshold: a Ritual Spell requiring "total Levels equal to or greater than 8" with a Level 4 and a Level 5 monster available. Tributing both (total 9) is legal because neither monster alone reaches 8 — neither is redundant. Tributing a Level 8 monster and an extra Level 2 monster on top would be illegal, because the Level 8 monster alone already satisfies the requirement.

Worked example

"Which Ritual Spell can Ritual Summon a Ritual Monster by sending Normal Monsters from the Deck to the GY?"

— Answer: Advanced Ritual Art. Its tribute pool is the Deck and is restricted to Normal Monsters only — Effect Monsters in the Deck cannot be sent regardless of Level.

"Can Dawn of the Herald Ritual Summon a Ritual Monster other than Herald of Perfection?"

— Answer: No. Dawn of the Herald is locked to Herald of Perfection by name. Generic Ritual Spells like Advanced Ritual Art or Preparation of Rites-supported lines must be used for other Ritual Monsters.

Judge calls to watch for

• Tributes for a Ritual Summon typically come from hand or field; you cannot tribute from the GY, Deck, or Extra Deck unless the Ritual Spell's effect allows it.
• If the Ritual Spell's activation is negated, no tributes are paid (tributes resolve during resolution, after activation).
• A Ritual Monster Special Summoned by its Ritual Spell is a "properly Ritual Summoned" monster and can be Special Summoned from the GY later by Monster Reborn, etc.
• "Equal to or greater than N" tribute pools are not a free pass to overpay: every selected monster must be necessary (no monster may be droppable while the rest still total ≥ N). When N is 0 (or otherwise already met by zero Tributes), this isn't "Tribute the cheapest single monster" — it makes the Ritual Summon impossible, because the empty Tribute already clears the bar and any nonempty Tribute is then surplus, while Tributing nothing fails the Ritual Spell's instruction to Tribute at all.
• Don't conflate "this combination totals more than N" (fine, as long as no subset of it also totals ≥ N) with "I can add as many extra monsters as I want on top of a satisfied requirement" (not fine, ever).
• Check whether the threshold itself can be met by zero Tributes before assuming "Tribute the minimum that works" is an option — a threshold of 0 (or already met by the field/hand having no eligible monsters at all) blocks the Ritual Summon entirely rather than reducing to a 1-monster Tribute.

Sources

• Konami Rulebook v10 §6 "Special Summoning"
• https://eu-support.konami.com/hc/en-gb/articles/9698595851415
• Ritual Summon tribute minimality ("if you can remove any 1 monster from your Tribute selection and still have enough for the Ritual Summon, that selection is illegal"): community-documented TCG/OCG judge ruling, cross-referenced via Yu-Gi-Oh! Wiki (yugioh.fandom.com/wiki/Ritual_Summon) and corroborated by Rush Duel Ritual Spell reminder text, which prints the same minimality requirement explicitly since the OCG/TCG version leaves it unprinted.
• The 0-ATK/zero-threshold "impossible to Tribute at all" conclusion (Meteonis Drytron worked example) is a direct logical extension of the minimality rule above, not a separately documented Konami/judge ruling — no primary source specifically addressing a zero threshold was found. Revisit if an explicit Konami ruling on this exact edge case surfaces.