A surprise part of green devotion decks (I know that sounds weird, but it can drop with a Storm the Festival or work with an Oath of Nissa) for a while, it provides another way to untap the various combo pieces like Nykthos, Shrine to Nyx in Pioneer and lesser entities like Nyx Lotus in Explorer
Carnivorous Death-Parrot, Vile Bile, The Fallen Apart, Paper Tiger, Scissors Lizard, Rock Lobster, Double Header These Un-cards are considered mainly for pauper cubes since their power to toughness isnt special in cubes that allow for rares, but four power and a decent toughness for four is actually pretty hard to find outside of a few cards like Rhox Brute, Wildheart Invoker, and Windrider Eel (which is actually a 4/4)
Organize by colors, mana costs, creatures and non-creatures and physically build the ramp to have an idea of how your curve is and if you have doubts about a card, take it out
Even without those synergies, Selfless Spirits perfectly respectable
Millicent, however, costs less for each Spirit you control, and provides you with additional Spirits to either snowball out of control or have insurance against board wipes
She offers some interesting options and makes use of madness and Delirium in a way that felt different from the pure self-mill strategies of things like Coram, the Undertaker
