Osseus, Obsidian Tyrant

First Strike, Flying
Whenever another red source would deal
damage to Osseus, instead prevent that damage
and put that many element counters on him.
{1}, Remove an element counter from Osseus,
Obsidian Tyrant: Osseus gets +X/+X until end
of turn, and deals X damage to any target, where
X is the number of counters that have been
removed from Osseus this turn.