Largepox（R&D Playtest cards）
Each player discards a card, then loses 1 life, then sacrifices an artifact, a creature, an enchantment, a land, a planeswalker, and a tribal permanent, then exiles a card from their graveyard, then puts the top card of their library into their graveyard, then removes a counter from a permanent they control, then gets a poison counter.
- While resolving Largepox, first the player whose turn it is chooses a card in hand without revealing it, then each other player in turn order does the same. Then all the chosen cards are discarded at the same time.
- After each player has lost life, the player whose turn it is chooses a permanent of each listed type. One permanent can’t be chosen twice this way, and that player skips any types of which they don’t control a permanent. Next, each other player in turn order does the same, knowing choices made before them. Then, all the chosen permanents are sacrificed at the same time.
- After exiling cards from their graveyards and moving cards from their libraries, the player whose turn it is chooses a counter on a permanent they control, then each other player in turn order does the same knowing choices made before them. Then, all of the chosen counters are removed at the same time.
- A player with ten or more poison counters loses the game as a state-based action.
MTG「ミステリーブースター」の「R&D Playtest cards」は、マジックフェスト等の大会で使用される「Convention Edition」のパックに限定収録されるカードです。
また、「R&D Playtest cards」はパック15枚中に1枚封入という封入率仕様となっています。
— マジック：ザ・ギャザリング (@mtgjp) November 12, 2019