Jasper

Whenever Jasper enters the battlefield, exile 1
card of your choice.
Whenever you enter the combat phase, you get
the option to pay an additional {2}.
If you do, Jasper gains Deathtouch and Vigilance
for 1 turn.
{b}{b} Jasper gains Indestructible for 1 turn and
get's +2/+2 (Stackable).