The Commander
Haste
Boast — 
: You may change Arni's base power to 1 plus the greatest power among other creatures you control until end of turn. (Activate only if this creature attacked this turn and only once each turn.)
Guide
Gameplan
Arni Brokenbrow is a mono-red aggro commander that wants to slam a big creature, swing wide and fast, and use Boast to make Arni match your largest beater. You curve out with efficient creatures, attack every turn, and convert tempo into double-strike or trample damage to close games before slower decks stabilize.
Strengths
- Cheap, hasty commander that pressures the board immediately and recasts easily
- Boast scales Arni into a serious threat alongside other big creatures
- Mono-red consistency with strong, cheap aggro and burn payoffs
- Low curve makes the deck fast and resilient to single removal
Weaknesses
- Mono-red lacks card advantage and struggles in long games
- Boast requires Arni to attack, so it's vulnerable to blockers and Fog effects
- Highly reliant on the board state; sweepers set the deck back badly
- Little interaction with combo or control decks beyond racing them
Key Cards
- Embercleave — Cheap after attacking and gives Arni double strike plus trample for explosive Boast-fueled damage.
- Fireshrieker — Doubles Arni's already-pumped power for huge swings.
- Ragavan, Nimble Pilferer — A premier one-drop that adds treasure and a Dash-able body to grow Arni's Boast.
- Goldspan Dragon — Big flying body that boosts Boast and ramps you with treasures for double spells.
- Reckless Bushwhacker — Anthem and haste enabler that pushes a wide board for lethal alpha strikes.
- Hammer of Nazahn — Indestructible attach gives Arni a free equip and protection while pumping power.
Upgrade Path
Lean into the curve: add fast mana (Sol Ring, Jeska's Will, treasure makers) and the best one- and two-drop beaters to enable explosive turns. Tighten equipment around Embercleave, Fireshrieker, and Hammer of Nazahn, and include reach via burn (Fireblast, Lightning Bolt) plus protection like Heroic Intervention or Boros Charm effects to beat sweepers and close races.
Core Cards
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
Win Conditions
- ▸Commander damage via Boast-pumped Arni with Embercleave or double strike
- ▸Wide alpha strikes backed by anthems like Reckless Bushwhacker
- ▸Burn and direct damage finishing chipped-down opponents
Archetypes
- Aggro — Hasty commander and low curve let you apply relentless early pressure.
- Voltron — Boast plus equipment turns Arni into a one-shot threat with double strike and trample.
- Tokens/Go-Wide — Cheap creatures and anthems let you swarm while Boast keeps Arni relevant.
Combos
No combos found for this commander on Commander Spellbook.
Related Commanders
Same color identity (R), by popularity.
