Aiarcs Hijack

You attempt to hijack a creature in the process of casting a spell. If the creature is casting a spell of 2nd level or lower that requires the target to make a saving throw, if successful you may change the saving throw required by the spell to any other saving throw. If it is casting a spell of 3rd level or higher, make an ability check using your spellcasting ability. The DC equals 10 + the spell's level. On a failure, your spell fails and has no effect.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, you do not need to make an ability check if the targeted spell is equal to or less than the spell slot used to cast Hijack