While 1,000 power might not seem like a lot, Zoros strategy can consist of spamming the board with low-cost characters that, with Zoros ability, can become huge threats if not dealt with quickly
In theory, there could be decks that don't want Glasspool Mimic (ones that have almost no creatures), but even with just a handful of creatures worth copying in your deck, it's significantly better than the Island it will likely replace
Shock lands, triomes, Eldraine lands
Youll have to target yourself and decide not to pay during resolution
In rare cases when you can get your hands on MTG Final Fantasy stock, the precons are still pretty prohibitively expensive
From the lofty rares and mythics of the Fellowship of the Ring, down to uncommons that might include Grimbold, Beregond and Haldir, theres a wealth of characters to draw from