We were only playing with starter decks, so there may be more complex cards in the full set, but it seems like the game was designed to be more on the simple side
Vial Smasher the Fierce cares about the mana value of the first spell that you cast each turn, and she'll happily dome an opponent for 5 even if you only spend 1 mana to cast the spell
Spend two mana and tap the card to gain a Treasure token - but only if you can best a literal coin flip first
The town cycle are kinda like MDFC lands, except you still get to play the land even if you cast the spell
Rank: Fun in the 99 Kefka, Dancing MadKefka, Dancing Mad Big Rakdos commander that has a powerful effect and scales with the power of the table
Bartz Klauser Final Fantasy is a great set for Winota, Joiner of Forces, as you have a ton of humans/non-humans to mix with this