Zero, Forever Loyal

Flying, ward: Gift a card
Whenever a card is put into your graveyard from anywhere, gain 1 life and put a +1/+1 counter on Zero.

Light The Way-Remove X counters from Zero: Search your library for a card with mana value X or less and put it into your graveyard. Then shuffle your library.

Fetch!-{t}, Discard a card: Exile target permanent card
from a graveyard. Until end of turn, you may cast a copy
of that card, you may spend mana as though it
were mana of color.