Channel Arcane

Target creature you control gains +4/+4 and
Indestructible until end of turn, sacrifice that
creature at the beginning of the next end step.
Splice onto Arcane {b} (As you cast an Arcane
spell, you may reveal this card from your hand
and pay its splice cost. If you do, add this card's
effects to that spell.)
To channel ones last arcane means death, but you'll
be nearly invincible for 10 minutes