36 cards where the set is “afr” and the cards produce mana

A-Dungeon Descent (Adventures in the Forgotten Realms #A-255)
A-Find the Path (Adventures in the Forgotten Realms #A-183)
A-Sorcerer Class (Adventures in the Forgotten Realms #A-233)
Cave of the Frost Dragon (Adventures in the Forgotten Realms #253)
Circle of Dreams Druid (Adventures in the Forgotten Realms #176)
Deadly Dispute (Adventures in the Forgotten Realms #94)
Den of the Bugbear (Adventures in the Forgotten Realms #254)
Dungeon Descent (Adventures in the Forgotten Realms #255)
Dungeon Map (Adventures in the Forgotten Realms #242)
Find the Path (Adventures in the Forgotten Realms #183)
Forest (Adventures in the Forgotten Realms #278)
Grim Bounty (Adventures in the Forgotten Realms #106)
Hall of Storm Giants (Adventures in the Forgotten Realms #257)
Herald of Hadar (Adventures in the Forgotten Realms #108)
Hive of the Eye Tyrant (Adventures in the Forgotten Realms #258)
Hoarding Ogre (Adventures in the Forgotten Realms #146)
Hoard Robber (Adventures in the Forgotten Realms #110)
Improvised Weaponry (Adventures in the Forgotten Realms #150)
Island (Adventures in the Forgotten Realms #266)
Kalain, Reclusive Painter (Adventures in the Forgotten Realms #225)
Lair of the Hydra (Adventures in the Forgotten Realms #259)
Mimic (Adventures in the Forgotten Realms #249)
Minimus Containment (Adventures in the Forgotten Realms #24)
Mountain (Adventures in the Forgotten Realms #274)
Orb of Dragonkind (Adventures in the Forgotten Realms #157)
Plains (Adventures in the Forgotten Realms #262)
Plundering Barbarian (Adventures in the Forgotten Realms #158)
Prosperous Innkeeper (Adventures in the Forgotten Realms #200)
Shambling Ghast (Adventures in the Forgotten Realms #119)
Skullport Merchant (Adventures in the Forgotten Realms #120)
Sorcerer Class (Adventures in the Forgotten Realms #233)
Swamp (Adventures in the Forgotten Realms #270)
Temple of the Dragon Queen (Adventures in the Forgotten Realms #260)
Thieves' Tools (Adventures in the Forgotten Realms #122)
Treasure Vault (Adventures in the Forgotten Realms #261)
Unexpected Windfall (Adventures in the Forgotten Realms #164)

It is the moment of discovery, the triumph of the mind, and the end of these results.