1. Cast Monastery Swiftspear, paying M.
2. Cast Lightning Bolt targeting the opponent, paying M, to deal 3 damage to them.
2a. Monastery Swiftspear's Prowess triggers, let it resolve to become a 2/3.
3. Attack with Monastery Swiftspear and Mons Goblin Raiders for 2 + 1, for a lethal 6 damage.
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