Rexaz, Trasher Leader

Haste, Trample
Other Viashinos and Dragons get +1/+1 and have haste and trample
Whenever a creature you control deals damage to a player, you draw a card. Then if you draw three or more cards this way, you lose that many life.
{3}{r}{b}{g}: Creatures you control became 5/5 red Dragon creature with flying in addition of their creature types.

First Jund, next the rest of Alara