New Summoner Spell (idea)

Ability Exhaustion Spell: Marks and adds 2.5 extra seconds to champion abilities.

Explanation: Would work as a 'true damage' 2.5 extra seconds against champions abilities. Meaning, that even if a champion has a 0.5 cooldown reduction ability, this spell increases the cooldown to 2.5 seconds. Also, if the enemy champion abilities are already off cooldown, this spell makes them go for 2.5 cooldown seconds.

It works as a mini Slience-like summoner spell. It does not affect activation items, it does not deny items activation, and it does not deny enemy summoner spells activation. Ways to counter this summoner spell: it can be countered with QSS (like Zed's mark) or Zhonya's (defensively).

**Note: **Only Katarina (passive) and Teemo's (mushrooms) might not be highly affected by this summoner spell. Could be also other champions that might not suffer much from this spell, but i don't care, this spell counters several itchy champions.