Krieg, The Psycho

Gone Vault hunting
When Krieg, The Psycho enters the battlefield,
look at the top 5 cards of your library,
you may reveal a land and put it into your hand,
if this land was a vault, put it instead onto the battlefield tapped.
{1},{t}Krieg gets +5/+5 until the
end of the next combat phase,
for every point of damage Krieg does,
put one ammo counter on equipped
Weapon