Its nice that we got an anthem effect for this creature type, but Achilless freerunning ability sort of forms some anti-synergy with the typical anthem-lord play pattern
Plague Myr From Mirrodin Besieged Card details Artifact Creature - Myr Uncommon Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) : Add to your mana pool
The Pathways are some of the best lands in the game - especially for Commander - and are even in Standard
Flight of the Witch-King Scene Call Forth the Tempest Call Forth the Tempest is an eight-mana sorcery with double cascade that damages each creature your opponent's control equal to the total mana value of other spells you've cast that turn
Marwyn, the Nurturer While the top of this list would certainly feature the likes of Rofellos, Llanowar Emissary from Urzas Destiny , that card is actually banned in Commander due to the fact that it simply doubles up the mana you get from Forests an objectively overpowered effect
Glittering Caves of Aglarond Gemstone Caverns ($61.12) Another staple land in Commander, the Gemstone Caverns is perfectly represented by the Glittering Caves of Aglarond