Rise of Champion Blazagni

I: Exile the top three cards of your library. You
may play those cards for as long as you control
this Saga.
II: Until the end of your next turn, players can't
gain life and damage can't be prevented.
III: This Saga deals 3 damage to any target.
Repeat this process X times, where X is the
number of red instant and sorcery cards exiled
with this Saga.