I recently build a deck for a custom thing in our playgroup, where the enchantment "growing rites of itlimoc" was my commander. Now I am really intruiged by these double faced cards, and using them as commanders. So I am now asking, what you guys think is the most fun double faced commander. Not the best card, but the most fun to play.
#Most fun double faced commander
dusty mauve
lost sedge
[[tetzin, gnome champion]]
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Legendary Artifact Creature — Gnome
Whenever Tetzin or another double-faced artifact you control enters, mill three cards. You may put an artifact card from among them into your hand.
Craft with six artifacts 
(, Exile this artifact, Exile the six from among other permanents you control and/or cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)
2/2
The Golden-Gear Colossus
Legendary Artifact Creature — Gnome
Vigilance, trample
Whenever The Golden-Gear Colossus enters or attacks, transform up to one other target double-faced artifact you control. Create two 1/1 colorless Gnome artifact creature tokens.
The sum is greater than the parts.
6/6
dusty mauve
Well thank you very much, great card for a dfc Deck
drowsy stratus
[[extus, oriq overlord]]
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Legendary Creature — Human Warlock
Double strike
Magecraft — Whenever you cast or copy an instant or sorcery spell, return target nonlegendary creature card from your graveyard to your hand.
"Join me for the dawn of a new age."
2/4
Awaken the Blood Avatar 
Sorcery
As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs 
less to cast for each creature sacrificed this way.
Each opponent sacrifices a creature of their choice. Create a 3/6 black and red Avatar creature token with haste and "Whenever this token attacks, it deals 3 damage to each opponent."