Katalya Myst, GM

Katalya Myst, GM is not a creature unless your devotion to red and green is more than 8.
Katayla Myst, GM is indestructible.
Annihilator 3
(Whenever this creature attacks, defending player
has to sacrifice 3 permanents)
{2}{r}{t}: Deal 3 damage to target creature.
{2}{g}{t}: Target creature get +3/+3 until end of
turn.