The best is seven cost sorcery that the first time it resolves you gain a life buffer of 7, and then load it seventh from the top, and then the next time it resolves you win
My sons Pokemon itch, which quickly followed a brief all things Super Mario phase and a longer all things dinosaurs phase, started innocently enough when we bought a bunch of packs one day last month and is still in the somewhat manageable phase
Similarly, if you sacrifice an artifact or creature to activate a mana ability to pay a cost with waterbend, that artifact or creature won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for waterbend
Among other MTG expansions, there's also a price reduction on the Lorwyn Exclipsed Play Booster Box to only $119.95
You could even run a small Teshar, Ancestors Apostle loop package to allow you to go infinite if needed, but cards like Scrap Trawler and Teshar are perfectly fine by themselves here, too