
First strikeFirst strikeDeals combat damage before creatures without first strike.
Whenever Alesha attacks, put a +1/+1 counter on it.
RaidRaidAbility word: is better if you attacked this turn. — At the beginning of your end step, if you attacked this turn, return target creature card with mana valuemana valueThe total amount of mana in a card's cost, ignoring colour. A card costing has mana value 4. X counts as 0 except on the stack. less than or equal to Alesha's power from your graveyard to the battlefield.
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Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.