At the beginning of combat on your turn, you may move a counter from target creature you control onto a second target creature you control
This action marks a player's decision to conclude their current turn, thus passing the initiative to their opponent
Cards printed with flash are (theoretically!) balanced for having flash
Like most Magic: The Gathering cards, the value of Banishing Light depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Theros Beyond Death)
The flexibility is great, but holding four mana up for interaction is admittedly easier at more casual tables, which probably accounts for why this card doesnt show up very often
Their next set is Reign of Jafar, which is expected to arrive at the end of May at Local Card Shop