Quote from WizardMN »Etali, Primal Storm
Yes, this works. Etali attacks and triggers. You copy that trigger. The copy resolves first which means you then exile cards from each person's library. As long as you get at least 1 spell it cast and you cast it, it will trigger Engine which untaps Resonator. Then, while the original trigger is still on the stack, you copy it again and do the same thing. This assumes you have enough mana to keep going.
(also, not sure if you asked this on the JudgeChat, but someone did and I mis-understood what the question was asking so I gave the wrong response there)
Quote from ClockworkThistle »Sorry to burst your bubbles, but when the quicksilver elemental triggers it copies the once per turn clause. You would need to produce a blue mana every time you copy the abilities. That isn't exactly difficult, but it is another hurdle to overcome.
Quote from MountainTimePunch »Quote from Tanion »How does pack rat benefit you? Wouldn't the caged cards belong to the copy and not the original commander?
Mairsil's ability only cares that they are exiled with Cage counters, not how they got to that state. It functions differently from other cards that exile cards to use abilities because of how the card is worded with the cage counters.
Quote from Tanion »How does pack rat benefit you? Wouldn't the caged cards belong to the copy and not the original commander?
Quote from AnImAr_ »Hour of Devastation is red's boardwipe and it's good. Only Bontu lives the onslaught of his card.