Magic The Gathering Cards of types 'Demon' and 'Phyrexian'

Flying This creature enters with two -1/-1 counters on it. {B}, Remove a -1/-1 counter from this creature: Put a -1/-1 counter on each other creature.

Flying (This creature can't be blocked except by creatures with flying or reach.) First strike (This creature deals combat damage before creatures without first strike.) At the beginning of your upkeep, you may sacrifice an artifact. If you don't, tap this creature and it deals 2 damage to you.

When this creature enters, choose one - - Target opponent loses 2 life and you gain 2 life. - Choose target battle. If an opponent protects it, remove three defense counters from it. Otherwise, put three defense counters on it.

Flying This creature enters with four oil counters on it. At the beginning of your upkeep, remove an oil counter from this creature. Then if it has no oil counters on it, you lose the game. Whenever a creature an opponent controls dies, its controller loses 2 life.