Mageseeker Persuader

If you've cast a non-permanent spell with a
mana cost of 6 or more, give Mageseeker
Persuader +1/+1 and challenger. (This creature
may force an opponent's creature to block it.)

Citizens of Demacia, it is my honor to keep you
safe. But we must demand your unwavering
support, for even within our high walls, mages
still walk among us!