Hellravager

Flying, lifelink, trample
Other Dragons and Demons you control gain
haste and trample.
{x}{b/r}{b/r}{b/r},{t}, Creatures you control gain +X/+X
and deathtouch until end of turn.
Partner — When both Hellravager and Grimlore
are on the battlefield under your control, you
may pay {w}{u}{b}{r}{g} to combine them into the planeswalker, Grimlore, The Endless Death.