Glowy Green Amulet

Instead of making a normal dispel attempt, the wearer of the Glowy Green Amulet may attempt to nullify any enemy spell cast at the bearer or the unit they are with by a rolling a number of dice equal to the number of dice used to cast the spell. As long as no 1's are rolled, the spell is dispelled. However, if one or more 1's are rolled, the spell gets through as the Amulet overloads and explodes, killing the wearer outright (with no saves of any kind allowed).