Isabelle's Counter Picks

Pocket Wario’s bike to cripple his recovery until one of you dies

Things you can pocket to prevent your opponent from using them: Wario’s bike ROB’s gyro Link’s bomb WFT’s soccer ball K Rool’s Crown You can also pocket Zelda’s phantom knight

When catching an opponent with a Lloid Trap, you can throw in an up air at the end of the rocket duration to send them more at a vertical angle instead of a diagonal

Pocket k. rool's crown and never let it go out to remove one of his greatest tools. Then proceed to play projectile keepaway.

Combine slingshots, Lloid Trap, and Fishing Rod to pretty much invalidate a lot of characters with few projectiles. Also a great thing is that Isabelle can do two nairs in a single short hop.