
FlyingFlyingCan only be blocked by creatures with flying or reach., first strikefirst strikeDeals combat damage before creatures without first strike., trampletrampleExcess combat damage it deals to a blocker carries over to the player or planeswalker it's attacking., lifelinklifelinkDamage dealt by this also causes you to gain that much life., hastehasteCan attack and use tap abilities the turn it comes under your control.
At the beginning of combat on your turn, other Spiders you control gain flyingflyingCan only be blocked by creatures with flying or reach., first strikefirst strikeDeals combat damage before creatures without first strike., trampletrampleExcess combat damage it deals to a blocker carries over to the player or planeswalker it's attacking., lifelink
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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.