New summoner spell - Spell shield

So basically we have a summoner spell for getting out of lockdown, which is cleanse, but I've always felt like having a spell-shield like summoner spell would be beneficial to the game. Basically it would be a slightly lower cooldown, perhaps not like clairvoyance, but enough for it to be significant every now and then. When you press it you gain a spellshield that absorbs the next incoming spell. Perhaps making it so that absorbing a spell gives you something beneficial might work, but i'm not too certain.

I even made an icon and something that it might look like in-game. I'm no photoshop master, so I know it might look like crud, but you get the idea.