However, the condition cannot be “the Liquid Death Slasher shirt of the round”, although you could tie it to another creature (1st to act in the next round) starting to move, for instance. In addition, your movement and a possible bonus action is part of your turn, not your action, so the ready action cannot be used to move (except to take the dash action) or to perform a bonus action. Finally, if using a spell, it can only be a 1 action spell, and holding it requires concentration. Which means you cannot be using another concentration spell. In addition, you also use your spell slot when you take the ready action. If you lose concentration or do not use it (abandon it for doing some other action).
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