I've been playing some Dominion lately and I'm so glad it exists for really one reason, I can learn how to team fight and skirmish with a new champ without worrying about falling behind. The increased passive gold generation in Dominion makes it extremely hard to fall behind. This allows games of Dominion to stay relatively even and lets players work on timing, skirmishing, mechanics, and test out different build paths.
If you want to know about Dominion just ask HotshotGG
It's one of the MANY improvements Dominion made over SR's formula. Snowballing is toxic. It ruins the experience for both teams by making winning too easy and comebacks impossible even with superior skill beyond a point. Dominion fixes that by making sure champions stay on fairly even footing regarding gold and experience. Late comebacks are always possible, and not bogged down in viability by pure numbers. Success counts equally at all stages of the game, making it a true contest of who played better for the entire duration rather than who scored first and coasted to victory. It's the way games are meant to be, the reason CoD is so hated compared to TF2, Overwatch, and CS:GO.
also...it´s fun.
The fact that everyone is more or less on equal footing also helps to get a feel for raw champion power. There are things you notice in Dominion that are otherwise obscured by Rift's snowballing and pacing. Right now, Koggy is an absolute MONSTER on Dominion, yet his win-rate is down in the gutter on Rift. Urgot and Yorick have been in a similar situation for ages.
For Koggy, he's free food in the lane phase and has a great deal of trouble ever reaching equal footing.
