Also, Rancor may be attached to a creature with Shroud or Hexproof because the Rancor permanent doesnt target anything (if this sounds like a revelation to you, I feel obliged to send you to read the article on auras one more time)
Think of Cranial Plating, then look at Kite Shield, and behold the difference
As such, it's probably not a surprise that the decks built around more evergreen themes like instants, Humans, or cycling crushed the decks that are basically Ikoria -block Commander decks without the best Ikoria cards
It also lets you play with the top card of your library revealed and cast creatures from there, which is perfect for creature-heavy green decks that want to keep the board full without running out of steam
Most "tribal" decks wind up running a handful of extra support creatures just to be able to keep up with non-tribal decks
The Green Disenchant Project has some more in-depth information and scans that may help identify such cards
