Rohgahh, Kher Keep Overlord [Dominaria United Commander]

Other Kobolds you control get +2/+2.

Whenever you cast a Kobold spell, you may pay {2}. If you do, create a 4/4 red Dragon creature token with flying.

Whenever you cast a Dragon spell, create a 0/1 red Kobold creature token named Kobolds of Kher Keep.