Certain character Glimmers will have a specific number of diamond-shaped lore symbols on the right side of their rule box, which indicates how much Lore is gained when they go on a quest - one of the two core actions in Lorcana
It varies from group to group, of course, but often EDH is the format players turn to for wacky games with weird cards, so hyper-efficient insta-win combos can sometimes feel incongruous with that zany aesthetic
It's important for mechanics in Limited to be able to function well when they are contested, meaning that you can't make your deck entirely out of one mechanic
The label applies only to Standard expansions.
I think Swords to Plowshares and Path to Exile are natural fits, but if you want play more enchatments, you could also try Journey to Nowhere, Borrowed Time, or Oblivion Ring
Winning can take some work but it feels great to pull off its combos