"Terese Nielsen%26Ron Spencer" (5)
If you would gain life, you gain twice that much life instead.
If you tap a permanent for mana, it produces twice as much of that mana instead.
Creatures you control have double strike.
If you would draw a card, draw two cards instead.
At the beginning of each end step, each opponent loses life equal to the life they lost this turn. (Damage causes loss of life.)
Gatherer works better in the Companion app!