But then again, that might be the Hogaak hangover talking
After all, his ability doesn't trigger off creatures entering, only from casting them, so you don't get to double up his triggers when you use Ashling to make token copies
Still it has three abilities that are always highly relevant, and a fourth that can absolutely ruin certain decks, so it's not hard to see why EDH fans are slotting this one into the 99
In their place, we've got strong ways to dump our library into our graveyard (like World ShaperWorld Shaper), a few second-rate tutors (like Vivien, Monsters' AdvocateVivien, Monsters' Advocate), and even a new piece of bear-themed removal (Ulvenwald TrackerUlvenwald Tracker)
When we next got our 6/6 Giant Titans in 2020, they cost two or three mana, had an immediate impact when they entered, and then could be cast properly from the graveyard later on