Nexus Obelisk Artillery

The Nexus Obelisk turret calls down a beam of Red/Blue Light every 2 seconds against enemy champions inside your base (4750 Range), dealing 300 true damage in an area (about the same size of Cho'Gath's Rapture ability) getting is range reduced by 850 for every inhibitor currently destroyed in that Nexus Obelisk's base. (minimum 2200 Range = reaching the Nexus Turrets, approximately) The Nexus Obelisk has a delay of 0.5 seconds before the beam lands, meaning you can see where its going to land in that time period. The Nexus Obelisk beam prioritize the champion with the lowest current health (meaning that it will target a Jinx with 1682hp 100% current health rather than that Maokai with 2102hp 50% current health) Conditions:

• At least one Inhibitor must be destroyed in that Nexus Obelisk's base before it starts its first firing, which will start only 10 seconds after the inhibitor got destroyed.
• After firing 10 beam shots in succession it will go on a 10 seconds cooldown before it starts firing again.
• When there are no enemy champions in that specific Nexus Obelisk's turret range, it will reset his 10 shots limit.

What do you think?