Akai Haato, Idol Of Ideals

Lifelink
When Akai Haato enters the battlefield, you gain
life equal to half the number of creatures you control, rounded up.
{1}{w}{u}{b}{r}{g}, Pay 4 life: Sacrifice Akai Haato,
then return her to the battlefield transformed
under her owner's control.
(Transforms into HAACHAMA, Ineffible Idol)