: Add an amount of equal to the greatest power among creatures you control that entered this turn.
Partner (You can have two commanders if both have partner.)
Drop big-power creatures, then tap Alena to generate a mountain of red mana equal to your largest fresh attacker, dumping it into more haymakers or X-spells in a single explosive turn. You ramp into oversized threats early and snowball, often pairing Alena with a partner to add another color or payoff. The deck wins by chaining creatures and burning the table out with that surplus mana.
Generates absurd amounts of mana off a single big creature, enabling huge turns
Partner slot lets you splash a second color and second strategy
First strike makes her a respectable attacker and combat blocker
Rewards a curve you'd build anyway in red beatdown/ramp
Mana only counts creatures that entered THIS turn, so timing and sequencing matter
Heavily reliant on Alena staying untapped and untargeted—removal stalls you
Mono-red without partner struggles with card advantage and interaction
Summoning sickness and tap requirement make her clunky the turn she lands
Her intended partner; gives reach/fight removal and a second creature-centric commander to fill the second color slot... actually mono-R, but Halana is also red and a natural pairing.
Protects Alena from targeted removal so her mana engine keeps running.
Add untappers like Thousand-Year Elixir, Sword of the Paruns, or Magewright's Stone to loop Alena with a big creature for infinite mana, then close with an X-burn outlet. Pick a partner that adds card advantage or a second color payoff, and lean on haste enablers and protection (Lightning Greaves, Heroic Intervention) so her mana comes online immediately and survives. Prioritize cheap big-power creatures and treasure/ritual support to push explosive early turns.