Fate of the Sun-Cryst (decent) Fate of the Sun-Cryst is whites final removal spell, and its reminiscent of a card like Seized from Slumber
Slimefoot and Squees second ability, costing and requiring the sacrifice of a saproling, allows you to reanimate it plus one other creature
Repulse has lost value far slower than Spiketail ans so while Hatchling was a bigger name in cube ten years ago that is likely no longer the case
The combination of a good body with an easy-to-cast cost and a free, good sacrifice ability puts this card high in the list
Plus, you can even hunt down and capture the Avatar himself: a raised foil Avatar Aang illustrated by show creator Bryan Konietzko
Players also need to include tokens, emblems, or any other cards that are needed in the decks because they wont auto-load or be easily fetchable once in-game