Amphibian Downpour
From Modern Horizons 3 set
Amphibian Downpour
Enchantment — Aura
Flash
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies. Copies become tokens.)
Enchant creature
Enchanted creature loses all abilities and is a blue Frog creature with base power and toughness 1/1.