Such a nice guide for new dominion players thumbs up!
...But I've never seen dominion draft pick in NA. Not even when I waited queue for an entire hour...
Where do I find it?

Should Xerath really be tier 5 bottom lane? He can stop pushes really easily and once he gets points in W he can constantly harass the other laner to death.

I play bot lane almost exclusively and tbh the only thing xerath has going for him is that not many people have matched up against him. From playing against him I can say that he quickly crumbles against any aggressive match up. His ability, locus of power, rewards him for remaining stationary.

the act of not just being stationary but communicating it to your opponent with animation is an invitation to land skill shots and lay down aoe spells.
This isn't to say that he can't be effective, just that, unless he is amazingly well played most other bot lane choices will prove to be better.

Xerath's primary problem bot lane is that he sucks at killing minions fast. He needs far more items compared to other mages to start one shotting ranged minions, and that dramatically ****s his ability to hold bot lane against pushes. The shape of his AoE attack doesn't help either (he has to get close to the minion wave to get any good coverage angle).

If he got a slight Q damage boost, he would become at the very least an adequate bot lane.

Elise is incredibly OP.

How would you think if you step over the limits of SR to improve the balance of dominion.
Like offering champions a 60%cdr cap, having more itemslots, having items with a short cd based blink to be more equally strong as champions who have a blink.
A dominion based flash which has a really short cd.
Having items that can stack tenacity, having no tenacity cap, to weaken strong champion picks that have cc.