Rohgahh, Kher Keep Overlord

At the beginning of your upkeep, you may pay . If you don't, tap Rohgahh and all creatures named Kobolds of Kher Keep, then an opponent gains control of them.

Creatures you control named Kobolds of Kher Keep get +2/+2.

Flying

Whenever another nontoken Dragon you control enters, create a 5/5 red Dragon creature token with flying.

: Dragons you control get +1/+0 until end of turn.

When you cast this spell, create X 0/1 red Kobold creature tokens named Kobolds of Kher Keep, where X is the amount of mana spent to cast it.

Flying

Sacrifice another creature: Prossh gets +1/+0 until end of turn.

Other white creatures you control get +1/+1.

Other black creatures you control get +1/+1.

Whenever you cast a white spell, you may tap target creature.

Whenever you cast a black spell, you may destroy target creature if it's tapped.

Flying

Landfall — Whenever a land you control enters, create a 0/2 red Dragon Egg creature token with defender and "When this token dies, create a 2/2 red Dragon creature token with flying and ': This token gets +1/+0 until end of turn.'"

Flying

Whenever a Dragon you control attacks, creatures you control get +1/+0 until end of turn.

Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)