yugioh umi support cards Top 10 Cards for Your "Umi" Yu-Gi-Oh Deck Umi (SDD) - Yugipedia

It lets you remove any kind of counter from any kind of permanent, turning it either into a +1/+1 counter for a creature or a charge counter for an artifact

A well-known example is Mistys Tears , a trainer card from the Gym series

Vanillish doesn't have an Ability but it does have two moves, the first move is called Ice Beam and for two energy cards, one each of water and colorless, it does 20 damage and if you get a heads when you flip a coin the defending Pokemon is paralyzed

Thats useful in any deck strategy

In this instance, they can negate Spells, Traps or Normal Summons and remove that card from play until the End Phase

Terramorphic Expanse, Lonely Sandbar, and Wall of Denial for starters