Any "as [this creature] enters" or "[this creature] enters with" abilities of the chosen creature will also work
As for uncommon payoffs, the deck has some nice legendary creatures like Uncommon payoffs like these are a real draw for an archetype like this since you'll have cornered the market on them
As a pure-green Commander, she really isnt all that bad, leveraging cards that give her +1/+1 counters and let you play extra lands
Life / Death The green half of Life / Death kills players out of nowhere in EDH with enough token/pump support and lands
But if you had dusted that card, you wouldnt have it for the future
Creatures (23) 4 Lotleth Troll 2 Obzedat, Ghost Council 3 Sylvan Primordial 4 Sylvan Caryatid 2 Ashen Rider 4 Courser of Kruphix 4 Satyr Wayfinder Planeswalkers (3) Lands (23) Spells (11) Sideboard Its pretty cool that Obzedats Aid can return Whip of Erebos and Elspeth, Suns Champion in addition to straight fatties