Striding Shotcaller // Run the Play
Creature — Troll Druid // Sorcery
Reach
Whenever one or more creatures you control deal combat damage to a player, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)
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Put a +1/+1 counter on each of up to X target creatures. Those creatures gain flying until end of turn. Draw a card.
ReachPrepared