Merfolk Thaumaturgist⁣ - Planar Chaos⁣ (Common)⁣ [56]

Merfolk Thaumaturgist allows you to switch the power and toughness of any target creature until the end of turn, which can be used to weaken an opponent's creature or bolster your own in combat. This ability makes it a strategic option in blue tempo or control decks, as you can disrupt combat math or surprise opponents with unexpected stats. However, its low toughness makes it vulnerable to removal spells, so it’s best used carefully.