Ten'shi, Master of Masters

At the beginning of your upkeep, look at the top
X cards of your library where X is the number
of cards in your hand. For each color among
them, put one card from that color into your
hand. Put the rest on the bottom of your library.
When you cast a spell with converted mana cost
5 or greater, you gain 2 life, draw a card, deal 3
damage to any target, put two +1/+1 counters
on target creature, and return target creature
from your graveyard to your hand.