![Wizened Arbiter [Mystery Booster Playtest Cards]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/wizened-arbiter-mystery-booster-playtest-cards.webp)
Description
| Set: | Mystery Booster Playtest Cards |
| Type: | Creature — Human Soldier Wizard |
| Rarity: | Rare |
| Cost: | {W}{W} |
When Wizened Arbiter enters the battlefield, you may reveal a white card you own from outside the game. If you do, exchange that card with a card in your hand.
![Progenitus [From the Vault: Legends]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/progenitus-from-vault-legends.webp)
![Synapse Sliver [Legions]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/synapse-sliver-legions.webp)
![Junun Efreet [Arabian Nights]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/junun-efreet-arabian-nights.webp)
![Conqueror's Galleon // Conqueror's Foothold (Buy-A-Box) [Ixalan Treasure Chest]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/conqueror-s-galleon-conqueror-s-foothold-buy-box-ixalan-treasure-chest.webp)
![Zodiac Monkey [Portal Three Kingdoms]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/zodiac-monkey-portal-three-kingdoms.webp)
![Swords to Plowshares [Fourth Edition]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/swords-to-plowshares-fourth-edition.webp)
![Vivid Creek [Modern Masters]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/vivid-creek-modern-masters.webp)
![Lashwrithe [New Phyrexia]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/lashwrithe-new-phyrexia.webp)