Thor, Heaven's Lightning

Haste, Trample, Vigilance, Hexproof, Ward
Thunderstorm 4 — Whenever "Thor, Heaven's Lightning" is declared as an attacker, add 4 colorless mana.
{t}{4} Give any creature Flying counter, if given to a creature that already has Flying, give it Indestructible instead.
{5} Discard all other creatures you control. "Thor, Heaven's Lightning" gains +3/+1.
Ward - Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {8}.