Lightsteel Colossus

Indestructible, Vigilance, Trample
If Lightsteel Colossus would be put into a graveyard
from anywhere, reveal Lightsteel Colossus and
shuffle it into its owner's library instead.
When Lightsteel Colossus deals combat damage
to a player, choose one:
• Put a +1/+1 counter on Lightsteel Colossus.
• You gain life equal to the damage dealt.
• Draw a card.