mono red aggro

Haste

Whenever Captain Lannery Storm attacks, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Whenever you sacrifice a Treasure, Captain Lannery Storm gets +1/+0 until end of turn.

Sacrifice Catalyst Elemental: Add {R}{R}.

Haste

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

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

At the beginning of combat on your turn, create a 1/1 red Goblin creature token. That token gains haste until end of turn and attacks this combat if able.

Lightning Strike deals 3 damage to any target.

({T}: Add {R}.)

Flying

When Rekindling Phoenix dies, create a 0/1 red Elemental creature token with "At the beginning of your upkeep, sacrifice this creature and return target card named Rekindling Phoenix from your graveyard to the battlefield. It gains haste until end of turn."

Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin.

Remove three +1/+1 counters from Runaway Steam-Kin: Add {R}{R}{R}.

Shock deals 2 damage to any target.

Sacrifice a Goblin: Add {R}.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Whenever Tilonalli's Summoner attacks, you may pay {X}{R}. If you do, create X 1/1 red Elemental creature tokens that are tapped and attacking. At the beginning of the next end step, exile those tokens unless you have the city's blessing.

When Wily Goblin enters the battlefield, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")