The combination of two Floodborn characters, Fairy Godmother, Mystic Armorer, and Madam Mim, Rival of Merlin, creates a powerful synergy that will allow you to rush out cards with +3 Strength and run them into your opponent's board, then return them to your hand to be played again
Wrenn and Seven is tailor-made for decks that want to dump their libraries into their graveyards for nefarious purposes
The creature type is not a mechanic on it's own, but many effects directly tie them together
Your opponents will be trying to do the same thing, and this creates a scenario where you'll have to try to think what you believe the other people will do, and they will be trying to do the same
(You may cast either half
Roles are a cool new mechanic that generate Aura tokens as part of a broader enchantment theme that also play incredibly well with the bargain mechanic as easy game pieces to sacrifice any time an enchantment checks the right boxes