Descendant of Masumaro [Saviors of Kamigawa] SPA Carpa primigenia I'm not quite sure what's

I'm not quite sure what's going to happen

Set: Time Spiral Timeshifted Type: Legendary Artifact Rare Cost: {5} Whenever you cast an instant or sorcery spell

Enchanted creature gets +2/+2 as long as an opponent controls a black permanent

Set: Planar Chaos Type: Instant Common Cost: {U} Choose one — • Target creature gains islandwalk until end of turn

Set: Planeshift Type: Instant Uncommon Cost: {3}{W} Cast this spell only during combat

Descendant of Masumaro [Saviors of Kamigawa] SPA Carpa primigenia I'm not quite sure what'sSet: Saviors of Kamigawa Type: Creature Human Monk Rarity: Uncommon Cost: {2}{G} At the beginning of your upkeep, put a +1 +1 counter on Descendant of Masumaro for each card in your hand, then remove a +1 +1 counter from Descendant of Masumaro for each card in target opponent's hand.