WARNING: The following contains spoilers for X-Men: The Trial of Magneto #4, now on sale
The X-Men and the Avengers have been trying to figure out who to blame in the attempted murder of the Scarlet Witch, with some of the suspects even extending to members of the Quiet Council. However, the ultimate suspect -- and the person sentenced to severe punishment for it -- was a far more mundane mutant.
Toad is blamed for the death of the Scarlet Witch in X-Men: The Trial of Magneto #4 by Leah Williams, Lucas Werneck, Edgar Delgado, and VC's Clayton Cowles and is sentenced to exile for this crime -- even though the issue proves he was actually innocent in the attack.
With the Avengers and the X-Men all demanding to know who attacked the Scarlet Witch, Wanda places the blame on Toad. In front of the Quiet Council (and the observing Avengers), Toad takes full responsibility for the attack -- having seemingly used a piece of uru metal, enchanted to dispel her magics and give him the chance to attack her. Blaming Wanda for splintering the Brotherhood and turning her back on mutant-kind, Toad admits his guilt and is sentenced to exile. This results in him being dragged deep into the heart of Krakoa. However, Toad wasn't truly responsible for the act -- as Wanda Maximoff had secretly arranged for her death alongside Magneto. This was done in order to give her the ability to cast a powerful spell that could open up the pathway for expanded mutant resurrection.
Even with these proposed benefits, the apparent condemnation of Toad for a crime he didn't commit is a major sacrifice for mutants. Wanda and Magneto are seemingly the only two who truly know why and how Wanda was killed -- technically by her own hand -- and they allow Toad to be sentenced to exile to cover up their actions. In doing so, the Avengers and Quiet Council are appeased that justice has been met. In fact, the secret of resurrection is kept away from human eyes (at least for a little longer). But Toad's exile is not reversed by the end of the issue, and in fact seems to be the current fate for the classic villain.
Toad has long been one of the X-Men's most consistent enemies -- and perhaps their unluckiest. Debuting as a part of the original Brotherhood of Evil Mutants in X-Men #4 by Stan Lee and Jack Kirby, Toad proved to be an infamously sniveling member of the mutant race, serving as Magneto's often abused lackey. Toad has tried repeatedly to prove himself a more formidable fighter and a leader. He formed his own incarnation of the Brotherhood and tried to overcome his villainous impulses at times. He even briefly worked with the X-Men as the janitor at the Jean Grey Institute for Higher Learning (where he developed a brief romance with Husk). But every time Toad tried to become someone more important, he found himself painfully knocked back down.
Toad has long been one of Marvel's most put-upon and almost pitiable mutants, and his current fate seems to cement that. Considering his outburst to the Quiet Council as he's dragged into exile, it's possible that Toad was made aware of the plan to cover up Wanda's death and resurrection. This would give Toad at least a noble intention in being sent into exile. The other possibility is far more tragic -- suggesting that Scarlet Witch, Magneto, and an undisclosed telepath either faked his exile in front of the world's mightiest heroes or they even overwrote his mind with the belief of his own guilt. Even in the idealized mutant future of Krakoa where former villains have found new purpose, Toad just can not catch a break.