You attempt to interrupt a creature in the process of casting a spell. The target spell must have a casting time of or greater. spells, and spells, cannot be counterspelled, they are too fast to counter.

Both casters make a contesting roll. They both roll 1d20 + Bending Skill. Then the additional modifier is added to the counterspeller's roll: [spell_level_cast] - 3 (level of counterspell). Meaning, higher level spells are more difficult to counterspell.

A final modifier is added to the counterspeller's roll: if the counterspeller knows the spell, or is able to cast the spell, the counterspeller adds +2 to their roll.

This check is determined by the GM (or Janus automatically):

• Failure The target caster's spell SUCCEEDS and takes effect.
• Success The target caster's spell FAILS and has NO effect.
• Tie The target caster's spell FAILS, has NO effect, and both you and the target caster must roll on the [item:216D44B5-5C1D-E3DB-1463-4D8C8C59A796].