The Instant and Sorcery Game

{Results}
Winner Idea, runner-up melono

{Spoiler}Not gonna lie, this is a pretty hard card to evaluate. The condition of specifically counting legendary permanents - something in theory one wouldn't have too much off but WOTC has put a big emphasis on as of late - and not doing anything to the board but giving multiple poison counters which could in theory end the game immediately is pretty trick to think hypothetically how such a card would normally fare. At the very least, I don't think activating corrupted would be that difficult with this under current design. On the other hand, you are dependent on your opponent, and if you ever get to the point of giving your opponent a ton of counters with this that means your opponent has a ton of legendary stuff, which likely means you're really losing. Still, a card like this can give you a good start on poison counters even if you can't get infect or toxic through enemy lines.

{Spoiler}Aether Snap and Thief of Blood are currently the only cards that remove all counters from more than a single target. They can do things other than just that, so you can't entirely pin their costs on that, but then they aren't one-sided. Far from just killing planeswalkers your card can also kill or effectively reset or incapacitate a lot of creatures, it can disable or reset artifacts... There are certain cards that might make you hesitate to play this, such as battles and certain "remove counters until this become a huge monster" type cards. Nonetheless, I'd consider a card like this at minimum at the level of a board wipe, and with potential to draw you cards on top. As such, I'd say the mana value here should be at least 5 if not 6 to be balanced. In terms of name and flavor, it does heavily remind me of the Elder Spell card and it seems to be invoking a similar flavor though the name seems more like it's talking about the pre-war period of growing tensions, but then I'm not sure what the removal of the counters from everything would represent.

{Spoiler}Gotta love them obscure bits of magic lore and history. I like the synergy between the two parts of the card's effect, though I do get the impression this kind of effect should have some in it, but I suppose it's not unheard of in blue either. I just associate it more with wheel effects. The only thing that makes me hesitate about this card is the multiple returning's impact on the cost, as multiple returned creatures often means a cost between 4 and 6 and that's without having a built-in windfall. Still, I like the way this card goes with the flavor and ultimately I do think the effects seems balanced enough for the cost, it'd be a matter of playtesting.

{Spoiler}I'll give victory to Flo00 , with elchetibo as a runner-up.