Counter Click

You interrupt a creature in the process of casting a spell which requires a click action. The creature casting a spell  cannot physically click their fingers of any form. If casting a spell of 3rd level or higher, make an ability check using your spellcasting ability. The DC equals 12 + the spell's level. On a success, the creature fails to click and perform spell. 

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the interrupted spell has no effect if its level is less than or equal to the level of the spell slot you used.