Callamaz, the Inciter

Whenever a creature you control attacks, if it
entered the battlefield this turn, it gains double
strike until end of turn.
Whenever a creature you control dies, if it
entered the battlefield this turn, draw a card.
Blitz {1}{b}{r} (If you cast this spell for its blitz cost,
it gains haste and "When this creature dies, draw a
card." Sacrifice it at the beginning of the next end
step.)