Kobold Drill Sergeant

Other Kobold creatures you control get +0/+1 and have trample.

Kobold Taskmaster

Other Kobold creatures you control get +1/+0.

Fire Diamond

Fire Diamond enters tapped.
{T}: Add {R}.

Red Mana Battery

{2}, {T}: Put a charge counter on Red Mana Battery.
{T}, Remove any number of charge counters from Red Mana Battery: Add {R}, then add an additional {R} for each charge counter removed this way.

Dwarven Miner

{2}{R}, {T}: Destroy target nonbasic land.

Mana Prism

{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Crimson Kobolds

Manabarbs

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

Chain Lightning

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Crookshank Kobolds

Dingus Egg

Whenever a land is put into a graveyard from the battlefield, Dingus Egg deals 2 damage to that land's controller.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Kobold Overlord

First strike
Other Kobold creatures you control have first strike.

Kobolds of Kher Keep

Sisay's Ring

Triassic Egg

{3}, {T}: Put a hatchling counter on Triassic Egg.
Sacrifice Triassic Egg: Choose one. Activate only if there are two or more hatchling counters on Triassic Egg.
• You may put a creature card from your hand onto the battlefield.
• Return target creature card from your graveyard to the battlefield.