Ravi, Apocalypse Raider

Haste, first strike, trample
You may cast creature spells as though they had
dash. The dash cost is equal to their mana cost
reduced by up to {2}. This effect cannot reduce
the mana in that cost to less than one mana.
Raid - At the beginning of your postcombat mainphase, draw cards and lose life equal to the
number of tapped creatures you control.