Haele, Thunder Pass Ruffian

First Strike
Melee (Whenever this creature fights or deals combat damage to a creature, that creature loses all basic abilities until end of turn.)
Whenever a creature enters the battlefield under an opponent's control, Haele, Thunder Pass Ruffian fights that creature. If Haele, Thunder Pass Ruffian would die this way, you may sacrifice a plains or a mountain instead and prevent all damage that was dealt this way.