Rex, Cyber-Hound + Knacksaw Clique + Steelswarm Operator

Prerequisites

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Steps

1. 1Activate Rex using Steelswarm Operator's second ability by tapping it, adding that can only be spent to activate abilities of artifact sources.
2. 2Activate Rex using Knacksaw Clique's ability by paying and untapping it, exiling the top card of an opponent's library with the ability to play that card this turn.
3. 3Repeat.

Effects

• Exile each opponent's library