The most tantalizingly fertile mechanic for me, though, is a relatively recent one that got a boost in Modern Horizons: Delirium
Disney Lorcana - Amber and Amethyst Starter Deck Cards The Amber and Amethyst Starter Deck includes a lot of cool cards that synergize well together like Moana, of Motunui and Cinderella
In essence, you get to draw two cards and play more land every time you hit an opponent with this, and thats going to add up to a lot of extra value very quickly
Despite this, Irida is one of the best cards in the Triumphant Light miniset because it is very useful in Water-type decks and even in Normal-type decks , since it can use Energy of any type
The Walking Dead - Rick, and the rest of The Walking Dead gang, reimagined as Magic cards (this one caused quite an uproar at the time)
Emergence ZoneEmergence Zone: While I do believe that math is for blockers, it is a very important part of playing this deck, and this land can change a lot of combat math