Alakarnis, Oblivion Front

Reach, trample
When you cast this spell, for each opponent,
create a token that's a copy of Alakarnis, Oblivion Front, except it isn't legendary.
Spells your opponents cast that target Alakarnis
and share a color with it cost {4} more to cast.
Double Alakarnis, Oblivion Front's power and toughness for each permanent you control that
shares its name.