If the spell leaves the stack in any other way, or the permanent it becomes leaves the battlefield, it immediately resumes using its normal characteristics
Energy Cards used to attack
This means that unless you're specifically countering a Spell that limits itself to only being allowed to play a single copy per turn or one that has a steep resource cost to pay in order to play it, your opponent will most likely just be able to play that Spell again right after you put it back in their hand
6 Tezzeret, Agent Of Bolas A constant villain in the Magic lore, Tezzeret is an artifact-themed planeswalker, so dedicated to his craft and his pursuit of power that he replaced much of his body with a magical metal called Etherium
Origin Forme Palkia: 120 DMG from only 1 heads
Just make sure you haven't spent any money on the game yet before you reset