Here's an attempt at another counter for Tatatitat; I was having some difficulty with the listed one:
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Still not 100% a counter, but seems to win more than half of the time based on testing. Getting a discord on turn 1 or 2 is vital, followed by a gravity nymph as soon as possible after. Pandemonium is particularly for use against Otyughs and Defenders, or if things generally get out of hand before a lockdown occurs. Could potentially use locket/inertia, but this seemed to be slower at initial quanta, which made playing discord early and generally surviving much more difficult.