Forgotten Cave

Forgotten Cave enters the battlefield tapped.
{T}: Add {R}.
Cycling {R} ({R}, Discard this card: Draw a card.)

Foundry Street Denizen

Whenever another red creature enters the battlefield under your control, Foundry Street Denizen gets +1/+0 until end of turn.

Haste
{T}, Sacrifice Fanatical Firebrand: It deals 1 damage to any target.

When Viashino Pyromancer enters the battlefield, it deals 2 damage to target player or planeswalker.

When Goblin Instigator enters the battlefield, create a 1/1 red Goblin creature token.

Whenever another creature dies, you may have Hissing Iguanar deal 1 damage to target player or planeswalker.

Create two 1/1 red Goblin creature tokens.

Target creature gets +3/+0 and gains first strike until end of turn.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)

As an additional cost to cast this spell, sacrifice a creature.
Reckless Abandon deals 4 damage to any target.