Mahoraga

Haste
When mahoraga is summoned, he fights creature whose ability summoned him, or creature with highest power if played from library. If mahoraga is defeated, he stays on the battlefield under you control. If the summoner is destroyed, Mahoraga remains on the battlefield but attacks the creature with the highest power on the battlefield. If you do not control mahoraga, you cannot block with him.
{3}Adaptation