Sister Agatha

Holy Barrier - when two or more non-human creatures attack you or an ally,
Sister Agatha and up to one other creature gain indestructible until end of turn.
{t}: Add one mana of any color.
Dracula's Dominion - if this creature should die, if
Count Dracula is on your opponent's side of the
field, they may add a 'Agatha, Broken Nun' they
own from outside of the game to their hand.