{R} The Circle of Loyalty [Throne of Eldraine][ELD 009]

Affinity for Knights (This spell costs {1} less to cast for each Knight you control.)
Creatures you control get +1/+1.
Whenever you cast a legendary spell, create a 2/2 white Knight creature token with vigilance.
{3}, : Create a 2/2 white Knight creature token with vigilance.