Prefered Stages

Smashville

Pokemon Stadium 2

Small Battlefield

Unfavored Stages

Kalos

Unova

Battlefield

Avoid ink if you can and attack them when they are trying to recharge their ink
Side B has a lot of end lag.Use this to your advantage and shield or spot dodge when you know it is coming and punish
Apply constant rundown pressure if the Inkling is ever 100% completely out of ink. They desperately want breathing space in this moment, as a significant part of their kit is nerfed until they find a gap to get some ink: smashes weaker, jab weaker, f-throw weaker, no specials other than recovery.
Not the best kill power
Watch for nair strings
Watch out for roller ← Roller is extremely unsafe on shield, so block and punish if applicable.