Sneak attack for artifacts with things like Phyrexian Triniform and Blightsteel Colossus is very much my jam
Commencing with the upkeep phase, players untap all cards and draw a card, setting the stage for the strategic decisions ahead
For example, if your Summon: Bahamut with one lore counter on it loses all abilities because someone attaches Observed Stasis to it, it'll won't gain lore counters via the turn-based action until it has chapter abilities again (probably because you removed the Observed Stasis somehow.) New Keyword Ability: Job Select Many FINAL FANTASY games allow characters to choose (and sometimes switch between) different jobs with unique strengths and abilities
Still, I think Teferi is just too good for such cleverness, and I would save Ral for Izzet, Grixis, and Temur decks
It may affect how a player spends on their physical cards, and even the content creator ecosystem is heavily revolved around Pixelborn gameplay