Tried to build a deck around Siona.
• Lots of Auras (obviously)
• Double tokens
• Tawnos's Coffin / Flickerform (which keep the Auras and reattaches them when it comes back)
• Manlands + Wild Growth type ramp (if you have decent mana you can make tokens this way)
• When an enchantment/aura enters the battefield ...
• When you cast an enchantment/aura ...
Click here for a text version of this decklist
Click here for my EDH Commander decks