
TrampleTrampleExcess combat damage it deals to a blocker carries over to the player or planeswalker it's attacking.
At the beginning of each end step, if you gained life this turn, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)
For each opponent, you create a 1/1 black and green Pest creature token with "When this token diesdiesA creature dies when it goes from the battlefield to a graveyard. Being exiled or returned to hand is not dying., you gain 1 life."
Hover an underlined rule to see what it means.
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.