One Piece ST-27 Marshall D Teach Starter Deck: Disruption with a Hand Cost

Teach asks a satisfying question: which part of the opponent's next turn is worth a card from your hand? This is a disruption deck to learn deliberately, because its restrictions affect your own choices as well.
The important restriction
OP09-081 Marshall.D.Teach is a black, 5000-power Leader with five Life. Your own On Play effects are negated. His Activate: Main ability lets you trash a card from hand to negate the opponent's On Play effects until the end of their next turn.
This does not say that every opposing effect is canceled. Read the timing label of the effect in question. An ability that activates while attacking or when a card is K.O.'d is not automatically an On Play effect.
A first-game approach
Ask what the opponent is likely to deploy on the following turn. Then decide whether denying the relevant On Play effects is worth the discard. Activating simply because you can may drain the hand when the opponent was planning a turn that barely cares.
For a teaching game, have the opponent explain a sample On Play effect before the match starts. Contrast it with another timing label. That keeps the first successful disruption from becoming a disagreement about what was actually prevented.
Learn removal in order
The included OP09-083 Van Augur can rest to reduce an opposing Character's cost by three during the turn, with the appropriate Leader type. This is a setup tool: check whether another card can use the reduced cost before spending the action. Reducing cost by itself is not the same as K.O.'ing the target.
What to record after games
- Which turns did the Leader activation prevent something important?
- Which activations cost a card without changing the opponent's plan?
- Did you add a card whose On Play effect your own Leader negates?
B3 would suggest Teach to a player who enjoys learning opposing decks and choosing precise answers. Be patient during early games: you are learning which effects matter as well as how your own cards work. A targeted upgrade should answer a specific repeated problem; an unrelated powerful On Play card can be a poor fit here.
Check the complete product before buying
Bandai lists the English ST-27 release on June 6, 2025, with a US MSRP of $11.99. That is a reference retail price, not a promise about today's stock or seller price. The listed contents are a 51-card constructed deck including the Leader, ten DON!! cards, a playsheet, and one OP-11 booster. A reseller's deck-only offer may omit extras.
For casual learning, start with one copy and keep the original list intact for several games. Before entering an event or ordering upgrades, check current card restrictions and the event's regulation. These spotlights explain the product and a learning approach; they are not tournament-tested deck rankings.
Source: Bandai ST-27 product specifications. Checked October 23, 2026. B3's buying advice and practice exercises are editorial guidance.
Source: Official included-card reference. Checked October 23, 2026. B3's buying advice and practice exercises are editorial guidance.
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