Volcanic Offering
Two spells fused into one, and each half hands an opponent a share of the destruction. You name a nonbasic land to blow up and a creature to burn for 7, then an opponent you choose names a second land and a second creature. The design belongs to the multiplayer school of effects that dress a self-serving payoff in the language of shared spoils: the sharing is the mechanism rather than the cost, converting removal into table diplomacy by briefly making a rival your partner against a common problem. And because "target" appears independently for each half, the opponent's picks are free to overlap yours: they can name the same land or the same creature you did, doubling the destruction onto a single object when everyone agrees it needs to die, or spreading it across four permanents when it does not. That choice is where the negotiation lives. Seven damage clears nearly anything with legs, and blowing up a nonbasic land is only a live threat in a world built on them, so the card is engineered for boards where both clauses matter and both are worth bartering over. Cast it deliberately and you clear two problems while buying a turn of goodwill; cast it carelessly and you have just handed a kill to the wrong seat. Resolving it during someone else's turn folds the whole exchange into a window they did not expect to defend, when the co-signed destruction is likeliest to break your way.

