With all of the ways to flicker and reanimate creatures out there, you can easily reuse Karmic Guides ETB again and again
The third commander in the set was Kestia, the Cultivator, a commander who cares about enchantment creatures
Zacama, Primal Calamity is also an option but makes for a poor Dinosaur commander as you'd much rather build a Big Ramp deck focused on abusing Zacama's activated abilities
The channel portion of the card didn't want to actually be a spell - By making channel an activated ability rather than an alternate mana cost, the Saviors team allowed the channel cards to do several things
If you then reach the eight counter threshold, you get basically a second hand, with the stuff in your graveyard suddenly available to return to the fray
With six cards boasting median values above $100, this set surely belongs in the pantheon of best MTG sets ever for collectors and players alike