Prefered Stages

Kalos

Final Destination

Town and City

Unfavored Stages

Yoshi's Island

Battlefield

Lylat Cruise

Jump over the projectile rain
Once through, fight him close-up where he can't set up projectiles but watch out for his long lingering up smash and forward smashes.
Walk, don't run. You can shield while walking but not during the initial dash.
Slow ground game
Shield grab
Shield attack -> grab
Bait his enevitable hero's spin (Up B) out of shield