The loop only stalls if you let the trash empty of good targets, so balance how aggressively you spend it
Note that the token you make when you attack does not die at the end of the turn, which is nasty
Once each turn, you may pay zero generic mana rather than pay the mana cost for a creature spell you cast from exile
Players jokingly call it Magic's first Planeswalker, since it's got three abilities and has such an outsized impact
Although I prefer the and versions of the Pathways due to my deck preferences, it's impossible to rank them individually, and I'd say that the best Pathway is the one that fits your deck
An impactful card from Modern Horizons 3, Necrodominance lets you exchange life for cards, completely changing the calculation about how valuable a card is, and making free spells that require you to pitch another card a lot more playable