An effect may refer to a card, spell, or permanent that "has an Adventure." This refers to a card, spell, or permanent that has an adventurer card's set of alternative characteristics, even if they're not being used and even if that card was never cast as an Adventure
A-Series cards (Genetic Apex up to Deluxe Pack ex) will still need duplicate cards
While Honest RutsteinHonest Rutstein can get pricey quickly as the table kills him over and over again, there's also your companion in UmoriUmori as a beefy backup to keep you slinging down two-mana creatures for one (and even a few one-mana creatures for zero)
(2025-06-06) Once a chapter ability has triggered, the ability on the stack won't be affected if the Saga gains or loses counters, or if it leaves the battlefield
If you like the -1/-1 effects, then Massacre Girl is another great option, with the added bonus of leaving you with a 4/4 menace threat afterwards