Union Attack

Union Attack — Power Evaluation

Final Score: 35 ± 7 · Confidence: Medium

• Intrinsic: 34.1 · Deck: 35.2 · Meta: provisional
• Primary role: Combo enabler · Secondary: Utility

Why it scores here

Union Attack converts a wide board into one very large ATK number, but the card itself states that the boosted monster cannot inflict battle damage and that your other Attack Position monsters cannot attack, so the gain wins nothing on its own and only matters if some other effect reads that ATK. It needs two or more face-up Attack Position monsters before it is even live, which makes it dead in the hand in most openings, and the sampled data shows 0 recorded combo appearances and only 7 decks running a single copy. Its score comes almost entirely from being a generic, archetype-free 1-of Normal Spell that is cheap to slot — the big ATK number earns no points.

Axis scores

Calculation

Weight profile: 0.7 Starter/Combo enabler + 0.3 Utility (default). Intrinsic ≈ 34.1, Deck ≈ 35.2, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

• Archetype-free Normal Spell legal across TCG, OCG, Master Duel and Duel Links, so it can be slotted into any deck that wants it.
• No engine requirement and no garnet cost — deck evidence shows every copy played is a single main-deck 1-of.
• On a wide board it adds the summed ATK of every other face-up Attack Position monster to one target, which can be a very large single number (though that number cannot be dealt as battle damage).

Weaknesses

• Self-limiting text: the boosted monster cannot inflict battle damage to the opponent and your other face-up Attack Position monsters cannot attack, so the ATK gain by itself closes out nothing.
• Requires an already-established board of two or more face-up Attack Position monsters, so it is frequently dead in the hand.
• Purely temporary — the gain lasts only for the Battle Phase of that turn.
• No combo evidence at all: 0 appearances across recorded boards, so no practical starter/material/payoff role is demonstrated.

Counters / choke points

• Spell negation or effect negation before the Battle Phase.
• Removing the targeted monster, or removing your other Attack Position monsters, before the ATK is used (a single removal blanks the line).
• Simply letting it resolve and blocking the Battle Phase, since the boosted monster cannot deal battle damage and the other Attack Position monsters cannot attack.
• Cards that prevent attacks or end the Battle Phase.

Best use

Combo enabler — a one-turn ATK pump that only pays off if another card reads that ATK. Decks: Armed Dragon (beatdown build), Warrior/Gearfried-Gilford big-body builds, Unthemed Attack Position beatdown piles. Suggested copies: 1.

Evidence & gaps

• Verified: Card text: target 1 face-up monster you control; it gains the total ATK of all other face-up Attack Position monsters you control during this turn's Battle Phase only.; Card text restriction: the boosted monster cannot inflict battle damage to the opponent, and other face-up Attack Position monsters cannot attack.; Card identity: Normal Spell, no archetype, 0 ATK/0 DEF, legal in TCG, OCG, Master Duel and Duel Links.; The card has no built-in search, draw, recovery or graveyard/banish refuel in its text.
• Observed: 7 sampled decks run Union Attack, all main deck, all at exactly 1 copy (100% at 1 copy, avg 1.0).; Archetype spread of the sample: Armed Dragon 42.9%, no-archetype 28.6%, Evil Twin/Live Twin 14.3%, Live☆Twin 14.3%.; 0 combo appearances (0% of combos, 0 as starter, 0 as material, 0 as payoff) with no recorded power index.; Most frequent observed partner is Change of Heart in 57.1% of its decks; Armed Dragon LV7/LV5, Gilford the Legend and Gearfried the Swordmaster each co-occur in 42.9%.
• Inferred: Because the boosted monster cannot inflict battle damage, the ATK gain is only meaningful if another effect reads that ATK — text-only inference, not evidenced by any recorded combo.; The pre-condition of other face-up Attack Position monsters means the card is a poor opening-hand card and demands an established board.; Removing the target or the other Attack Position monsters before the Battle Phase blanks the entire investment.; With no in-archetype searcher shown, it is drawn rather than tutored in the sampled decks.
• Data gaps: no combos supplied — combo conversion is text-only inference no guides supplied no banlist token — assumed 3 copies (unlimited) no usage statistics (StatisticsCard) — archetype inclusion % inferred from the 7-deck sample only deck sample is very small (7 decks) and dated 2024-02 to 2024-11 no meta/format-date sample, so meta power is left null