Counter Spell

Range: 60 Feet Castng Time: 1 Reaction
If the creature is casting a spell of X level or lower
its spell fails and has no effect. If it is casting a
spell of 4th level or higher, make an ability check
using your spellcasting ability. The DC equals
10+ the spell’s level. On a success, the creatures
spell fails and has no effect.
X is level counter spell is cast at