It already mills half of the opponent's library just by casting it, not needing to resolve, has a Ward that makes it hard to eliminate, and has stat line boosts and Annihilator based on the exiled cards in the game
Here is a list of what the numbers on the PSA grading scale mean: PSA scores can also fall in between grades depending on the card's condition, usually with a half-point increase
If youve not played with cards like these before, theyre worth picking up mid-pack as insurance in case you later end up with splashable cards in that color
That added versatility is enough to push it up the ranks compared to the other Bounce Bears on the list
+2: Look at the top card of target player's library
rather, you need some other way of sacrificing permanents, such as Kels's last ability