Kicker

Choose one. If this spell was kicked, choose any number instead.
• Double target creature's power until end of turn.
• Add an amount of

equal to the power of target creature you control.
• You may pay

. When you do, create X 1/1 red Goblin creature tokens.
Created for Challenge # 168.
First mode is generally worse than Assault Strobe. Second mode I don't think has been done as a standalone spell? But it's similar to Alena, Kessig Trapper's ability. Third mode is slightly better than Goblin Offensive but I think printable at rare.
I like that the three modes are all red but fit different red strategies: go-tall, ritual, go-wide. I like the story and connection that the three modes tell.
I will admit the reflexive trigger to pay extra mana in one of the modes is a bit clunky, though.