scry mtg cards Set of All 10 Scrylands Magic: the Gathering Commander EDH La – CommanderComplete If you do Scour All Possibilities [Modern Horizons]

Put a base toughness 4 counter on target creature The effect of a base power 4 counter or base toughness 4 counter overrides any existing effects that set that creature's base power or toughness, as appropriate

This is especially common in GUx towns, as their in-color options are a bit worse

The fact that this also affects mana abilities is a massive deal, too

If you control more than one Kaervek, each will give each other creature -1/-1

This should do a lot of work when it comes to saving you from a big threat

If The Sensational She-Hulk isn't on the battlefield as her last ability is resolving (perhaps because she was the creature that was dealt damage), you may still have her deal damage