Seaking

In autumn, its body becomes more fatty in preparing to propose to a mate. It takes on beautiful colors.

Horn Pierce (90): Flip 2 coins. If either of them is tails, this attack does nothing.

Endure (30): Flip a coin. If heads, during your opponent's next turn, if Seaking would be Knocked Out by damage from an attack, Seaking is not Knocked Out and its remaining HP becomes 10 instead.