Abilities that dont have this clause can be activated at instant speed, or whenever you have priority regardless of what else is happening
Except the person who played the Puzzle Box, of course
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$0.35 Deadbridge Shaman Magic Origins $0.35 Gilt-Leaf Winnower Commander Legends $0.35 Nadier, Agent of the Duskenel Commander Legends $0.35 Elderfang Ritualist (Theme Booster) Kaldheim $0.35 Koma's Faithful Kaldheim $0.35 Exquisite Huntmaster Commander Legends $0.35 Eyeblight Cullers Kaldheim Commander Decks $0.39 Elvish Doomsayer Commander Legends $0.49 Gloom Ripper Lorwyn Eclipsed $0.35 Unscrupulous Agent Murders at Karlov Manor $0.35 Thornbow Archer Magic Origins $0.35 Duskwielder Kaldheim 0 results found
Then it's great when you've attacked with normal size dorks, they block to trade with your stuff or kill some, and then you cast this and make them all 1/1 and blow them out
Flamehold Grappler Never a great turn 3 play, this should start to feel busted around turn 5