"Playful Possum" can Special Summon itself from the Graveyard on the next turn, so you can repeat the combo for another "Green Baboon, Defender of the Forest"
Many of these legendaries create stun counters themselves, while others simply synergize with the stun counter effect
How is this different to a big Banisher Priest
For repeat buyers and stores, consistency can be worth more than a small discount
This can still be devastating for a variety of things, such as combos that rely on creating an infinite number of enters-the-battlefield triggers, landfall decks, or strategies that rely on cards such as Animate Dead
It draws cards whenever it hits a player, and when a single creature attacks someone, you can choose between unblockable or double strike for a huge impact