Consign to Memory is superb here since it counters colorless spells outright, hitting Devourer of Destiny, Kozilek's Command, Sowing Mycospawn, and Ugin, Eye of the Storms (all colorless), while replicate lets one copy answer multiple threats in a turn. Meltdown sweeps their Expedition Maps, Talismans, and other low-cost artifacts, though it whiffs on lands. Spell Snare is largely dead since almost none of their key spells sit at mana value 2, and Spell Pierce is weak against a deck that floods the board with colorless mana easily, so both come out for more targeted hate.