Talk:Veigar/@comment-5557556-20141211133014/@comment-24241876-20141218024953

It really is more optimal to max Event Horizon before Dark Matter.

When you max Dark Matter, you're basically only increasing the base damage by 50 per rank. The cooldown doesn't decrease with ranks either. That, and it has a 100% AP scaling anyway, so it scales much better with items (and AP farming), rather than ranks. Provided you're farming enough AP to keep up with the rest of the opposition, a rank 1 Dark Matter should be sufficient enough as waveclear.

When you max Event Horizon, you're gaining 0.25 stun duration per rank, starting at 1.5, all the way to 2.5, in AoE. However, along with longer duration, it also decreases in cooldown, which can make a huge difference, especially during those mid-game skirmishes. It also helps if you're one that gets DFG early on for securing kills against a high-priority target, since you have more time to complete your spell rotation.

Honestly, I've seen too many people play Veigar and miss Dark Matter because a rank 1 Event Horizon isn't enough to land the full spell combo.