Dolion, Shifting Trickster

Whenever a nontoken creature enters under your control, you may have Dolion, Shifting Trickster become a copy of it until end of turn and deal X damage to up to X targets where X is the number of creatures you control that share at least one creature type with it.

{u/b}{u/b},{t}: Create two 1/1 colorless shapeshifter tokens with changeling