If you leave it, it will be the first to be removed by Cyclone, etc., but if you return it, you can also deflect other his Spell / Trap cards from removal targets
used as a sacrifice for the Eldlich Loop or quick-played to shut down your opponents turn
No metagame stays untouched forever, and many now believe Edison has finally been solved
(If it is in face-up Defense Position, change it to Attack Position.) Zoma the Spirit X TRAP Continuous Special Summon this card in Defense Position as an Effect Monster (Zombie/DARK/Level 4/ATK 1800/DEF 500) (this card is also still a Trap)
The game originally appeared on PS4 and Xbox One in 2015 and while developer Other Ocean Interactive has gone all-in on the content, the randomness of its difficulty hasnt been addressed
You can only use this effect of "Metalfoes Mithrilium" once per turn