Mostly the shop here does multiplayer EDH pods, so while you're playing against an aggro deck more times than not there's a control player at the table as well so you're deck needs to hold up against both at the same time.
The aggro decks expect the discard & mill effects, thus why I mentioned Thoughtrender being 6 cmc removal bait while the control deck, and include ways to
nullify them to some degree.
Agent of Erebos is the one Constellation creature I don't have included atm that I've been eyeing all night debating which card to switch it out for, not so much because of graveyard shenanigans like Meren or
dredge, etc.(only one or two decks in the meta really play graveyard tricks like that, one being my Karador) but because a couple of the control decks include ways to bounce
Snapcaster Mage for his flashback ability.
If my meta included more 1v1 games I would completely agree with you, but since it's mostly multiplayer (the last 4 tournaments have been pods of 3 or 4 with the winners advancing to another pod of 3 or 4, etc.), the trick is finding the
balance to hold your own against each of the deck types that see the most play. That's why, for example, I have
Blind Obedience along with
No Mercy and
Ghostly Prison to slow down aggro players with ways such as
Sun Titan,
Treasury Thrull, and the swaps suggested including
Auramancer &
Starfield of Nyx to bring things back from the graveyard against the control decks' counters & removal.