Outnumber

Outnumber deals damage to target creature equal to the number of creatures you control.

Wooded Ridgeline

({T}: Add {R} or {G}.)
Wooded Ridgeline enters tapped.

Kobolds of Kher Keep

Tree of Tales

Phyrexian Walker

Might of the Masses

Target creature gets +1/+1 until end of turn for each creature you control.

Bravado

Enchant creature
Enchanted creature gets +1/+1 for each other creature you control.

Great Furnace

Crimson Kobolds

Manamorphose

Add two mana in any combination of colors.
Draw a card.

Crookshank Kobolds

Kuldotha Rebirth

As an additional cost to cast this spell, sacrifice an artifact.
Create three 1/1 red Goblin creature tokens.

Ornithopter

Experimental Synthesizer

When Experimental Synthesizer enters or leaves the battlefield, exile the top card of your library. Until end of turn, you may play that card.
{2}{R}, Sacrifice Experimental Synthesizer: Create a 2/2 white Samurai creature token with vigilance. Activate only as a sorcery.

Mob Justice

Mob Justice deals damage to target player or planeswalker equal to the number of creatures you control.

Impact Tremors

Whenever a creature you control enters, Impact Tremors deals 1 damage to each opponent.