Mono-Red Rush

A fast mono-red aggro deck that curves cheap creatures into Emberheart Challenger, grows threats with cheap noncreature spells, and finishes with burn.

Emberheart Challenger rewards you for casting noncreature spells, so sequence Ancestral Anger, Turn Inside Out, Shock, Burst Lightning, Lightning Strike, and Boltwave before combat to grow it and push damage. Hired Claw is a one-drop that can sink mana to grow and ping. Dragon Fodder and Fanatical Firebrand provide extra bodies and reach. Razorkin Needlehead punishes opposing card draw and card selection, buying time against control decks.

Keep hands with two or three lands, at least one one-drop (Hired Claw or Fanatical Firebrand), and at least one cheap spell. Keep hands with Emberheart Challenger plus two one-mana spells. Mulligan hands with zero one-drops, more than four lands, or only expensive cards. On the draw, a one-land hand with two one-drops is acceptable.

Early: deploy one-drops, use Shock or Burst Lightning to clear a blocker, and cast cheap spells before combat when Emberheart Challenger is on the battlefield. Mid: land Emberheart Challenger and Razorkin Needlehead, attack every turn, and use burn to remove blockers or finish the opponent. Late: stop trading creatures, count your reach, and send all burn at the opponent's face. Use Razorkin Needlehead to punish card draw and slow down control.

Sweepers and mass removal can erase your board, so do not over-commit against control. Large blockers and lifegain can stall the ground and force you to rely on burn, which requires a fast start. The deck has little card advantage; once your hand is empty you are top-decking, so mulligan and sequencing matter.