The wondering Necromancer

Instant and sorcery spells you control have deathtouch and lifelink
Whenever you return a instant or sorcery card
from your graveyard to your hand
you gain an experience counter
{1}{b/g}{b/g} Return instant or sorcery from your graveyard
to your hand. Then, when you have five or more experience counters exile this card and it then
have it enter the battlefield transformed