Inconceivable Alliances

As Unlikely Alliances enters the battlefield,
choose two creature types.
Creatures you control are the chosen types in
addition to their other types. The same is true
for creature spells you control and creature
cards you own that aren't on the battlefield.
"There are times there have been unlikely alliances on
Dominanra. Some of the ones other plans are
just inconceivable!" - Feyalise