Ire of the Planeswalker

All damage dealt to planeswalkers you control is redirected to target creature or planeswalker you don't control, unless that damage source's controller pays {2} for each point of damage.
{1}{b}: Target planeswalker you control becomes
an X/X multicolored elemental creature with flying and first strike, where X is the number of loyalty counters on it. It's still a planeswalker. Activate this ability only during an opponent's turn.