Bonehoard Dracosaur Bonehoard Dracosaur gives you extra cards to play each turn, which alone is pretty powerful
You can find Set Championship events near you at the Ravensburger Play Hub
It works similarly to an ordinary Saga, producing effects over a series of turns before eventually being sacrificed
While this version of the mana curve is useful, it isn't a rule of deck building
Mixed with the right creatures, it can be the heart of a powerful combo deck: Yawgmoth, Thran Physician, plus two undying creatures (for example Geralfs Messenger and Young Wolf) generates a Yawgmoths Bargain sort-of engine, that can be turned to a One Turn Kill adding a Zulaport Cutthroat effect to the mix
I believe that most Gridfinity bins should work so long as you use a bin corresponding to the correct insert (2x2 for a 2x2), although I have not tested