Whenever one or more other attacking legendary creatures you control die, untap all creatures you control. After this phase, there is an additional combat phase. This ability triggers only once each turn.
Flood the board with legendary creatures, swing in, then sacrifice or trade an attacking legend to untap everything and get a bonus combat phase for a lethal second swing. Éomer wants aggressive, repeatable extra combats fueled by cheap legends and sacrifice outlets, closing games before opponents stabilize.
Free extra combat phase that untaps all your creatures, effectively doubling damage output
Built-in haste keeps the aggression flowing the turn he lands
Mono-red gives access to cheap aggressive legends, sacrifice fodder, and rituals
Synergizes with go-wide legendary tokens and aristocrats-style death triggers
Requires an attacking legendary creature to die each turn, so you need fodder and a sac outlet
Mono-red lacks card advantage and struggles to grind through removal-heavy control decks
Vulnerable to board wipes and Fog effects that blank your alpha strikes
No built-in evasion, so big blockers can stonewall the army
Stacks another exert-based extra combat on top of Éomer for explosive turns.
Add fast mana (Mana Crypt, Sol Ring, Jeska's Will) and free sacrifice outlets to consistently fire the trigger turn after turn. Layer in additional extra-combat enablers (Aggravated Assault, Moraug, Fury of Akoum) and efficient legendary token producers to scale damage, and include tutors like Gamble plus payoff finishers such as Impact Tremors to win even through chump blocks.