This Oath of the Gatewatch (2016) uncommon was a source of a lot of speculation on whether it could be good, but in the end, the probability of having a Card not found by turn two was just way too small for it make any actual waves
Weaknesses I cant think of a card that blows this deck out harder than Temporary Lockdown
The in-built ramp and card selection of Thrasios allows you to always find the right card, and Vial Smasher is a win condition in and of themselves
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Another perfect example of this is Isshin, Two Heavens As One, which reads: "If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time." This is an incredible ability to have on a commander - and building a Commander deck around it is sure to be a blast - but in a Standard set it just feels off