Raka Sanctuary is a uncommon Enchantment card from Apocalypse (APC), collector number 67. Current market price: $0.16 (foil $0.89), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, if you control a white or blue permanent, this enchantment deals 1 damage to target creature. If you control a white permanent and a blue permanent, this enchantment deals 3 damage instead.