Wild father's Arrow

You launch an iridescent arrow from you hand, making a ranged spell attack against a creature within range.
On a hit, the target takes 1d8 radiant damage and until the end of your next turn,
you have advantage on saving throws against the target’s spells and other magical effects.

This spell’s damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).

Special: You can apply to gleaming arrow any option or enhancement that applies to eldritch blast.