If the target noncreature spell is an illegal target as Glen Elendra Guardian's last ability tries to resolve (probably because that spell already left the stack due to another effect), it won't resolve and none of its effects will happen
Tri-Brigade Rebuilt the Danger
Wizards of the Coast has given us the opportunity for a free preview card to show off for the brand new Universes Beyond collaboration with The Hobbit , and Im so excited to show you Witch-king, Bringer of Ruin by Carl Critchlow
That being said, there are lots of stellar first strike creatures you can put to use
The main aces here are Ancient Koraidon ex from Temporal Forces and Sandy Shocks ex from Paradox Rift, who both have great attacks and wonderful support from the rest of the deck
Its second effect is great for generating value too, able to give you free Trap cards from the top of the Deck whenever a Trap is sent from your S/T zone to the GY