When Siona enters, look at the top seven cards of your library. You may reveal an Aura card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Whenever an Aura you control becomes attached to a creature you control, create a 1/1 white Human Soldier creature token.
Build a wide board by suiting up creatures with cheap Auras, generating a 1/1 Soldier token each time an Aura attaches. Snowball with token doublers and Aura recursion, then alpha strike or combo off with free-attaching Auras. Siona digs for your best Aura on entry, so you always have a Voltron payoff or a combo piece in hand.
Generates immediate value and board presence by turning Auras into token engines
Combo potential with self-returning Auras for infinite tokens
Resilient go-wide plan backed by anthems and token doublers
Cheap three-mana commander that replaces itself with card selection on cast
Vulnerable to board wipes that hit both creatures and Auras (two-for-ones)
Aura-heavy strategies risk catastrophic card disadvantage to spot removal
Lacks built-in evasion or interaction outside the white-green toolbox
Reliant on Siona or token doublers to make the Aura plan truly explosive
Draws a card for every Aura you cast, refueling the deck's biggest weakness.
Add an infinite token combo (Shielded by Faith plus a repeatable reattach/flicker outlet) and a finisher like Craterhoof Behemoth so the wide board converts immediately. Improve mana with fast rocks and untappers, and lean into Enchantress draw (Sram, Setessan Champion, Sythis) to offset Aura card disadvantage. Round out with protection like Heroic Intervention and Teferi's Protection to survive the board wipes that punish Aura decks.