Pendulums are an infamously complicated mechanic involving Pendulum monsters with two different effects depending on whether theyre being used as monsters or as Spell cards
The combination of ramp and card advantage makes this a nasty Sultai commander, and you even get a life buffer with the triggered ability
Regarding trainer cards, I think they have one of the best ones Ive seen that really tickles my nostalgia and highlights one of the best Pokmon trainers ever: 550550 72 KB 2 Likes Alec July 7, 2021, 5:13pm 8 I have some heavy nostalgia around trainer cards from the mid 2000s
Like transforming cards, MDFCs only count as their front face anywhere but the battlefield or the stack
There are alternatives to this deck just about any Metal-focused deck, such as Dialga ex and Melmetal, or even just any other meta-viable deck, will probably work