This thread is for discussing the article Modern Rules Problems - Going Through Modern Masters 2015 by Nathan Long.

Might be worth noticing that the following interaction is not obvious to players: when you have Lorescale Coatl in play and cast Tezzeret's Gambit, you draw two cards, proliferate, then put the Coatl's triggers on the stack. That is, if you have no counters on Coatl before Gambit is cast, you get two and not three counters, as when you get to proliferate, the counters are not yet on Coatl.

There's a small error regarding Hurkyl's Recall in the article.

Hurkyl’s Recall
The Recall only affects artifacts on the battlefield the targeted player controls. It won’t affect artifact in other zones, like the graveyard.

Hurkyl's Recall cares about artifacts owned by the targeted player, not controlled.

Well spotted, James. It's been fixed now.

Thanks for pointing it out!

There's another small error. Regarding Glint Hawk Idol.

Glint Hawk Idol
There are two ways that the Idol can become a creature: either by casting an artifact spell, causing the triggered ability to trigger, or by paying W to activate the second ability.

Glint Hwak Idol cares about artifacts entering the battlefield, not being cast. So Tezzeret the Seeker's -X -ability and Darksteel Citadel will both trigger the ability aswell.

We're on it. Thanks Felix!