Both players always have access to the three dungeons in the game, and can choose to enter one or continue their journey through one whenever the Venture keyword triggers
I would probably lean towards something like Glorious Anthem
If the spell that's copied divides damage or distributes counters among a number of targets, the division and number of targets can't be changed
Most notable might be the Buy-a-Box promo card Duel Decks and Commander decks, some From the Vault cards, Game Night cards, Premium Deck Series cards, and even a Planeswalker deck planeswalker
Some older leaders may have more nostalgia, and Bonney may still have the cleaner defensive identity, but OP16 Luffy feels like the strongest green leader card right now
When you have situations where they will not be getting the chance to usefully replay the card in question Boomerang is comically better than Vindicate, one less mana, one less colour, instant speed and not even triggering any "when this dies" effects