Mysterious Triangle
Edison Card Text
Destroy 1 monster on the field with an A-Counter. Then, you can Special Summon 1 Level 4 "Alien" monster from your Deck. Destroy it during the End Phase.
Targets
Note: the first part of the effect
No Damage Step effect
Banlist • Unlimited
Interactions
Does Mysterious Triangle target?!
You activate Mysterious Triangle's effect to Special Summon a Reptile.
Yes. Mysterious Triangle targets.
Rulings
edisonformat.net
●“Mysterious Triangle” targets the monster it destroys. If “Vanity’s Fiend” is preventing Special Summons, and it has an A-Counter, you can destroy it with “Mysterious Triangle” then Special Summon an Alien. If an effect is chained to “Mysterious Triangle” that removes the target’s A-Counter, it is not destroyed. (Example: if it is flipped face-down with “Book of Moon”.) If the targeted monster is not destroyed for some reason, no Alien is Special Summoned.
edisonformat.com
“Mysterious Triangle” targets the monster it destroys. If “Vanity’s Fiend” is preventing Special Summons, and it has an A-Counter, you can destroy it with “Mysterious Triangle” then Special Summon an Alien. If an effect is chained to “Mysterious Triangle” that removes the target’s A-Counter, it is not destroyed. (Example: if it is flipped face-down with “Book of Moon”.) If the targeted monster is not destroyed for some reason, no Alien is Special Summoned.