mtg new sliver commander deck Hivelord EDH | Sliver Tribal Deck card Collector Booster Sample Pack Sliver Gravemother [Commander Masters] Heavily

Creature lands like Shambling Vent and Hissing Quagmire are great at this

Should this inform your deckbuilding

You can even have up to 99 copies of the card in your deck, which is pretty hysterical

The Floodborn cards Protective Embrace effect grants other characters the Ward keyword, making it valuable as a way of defending against challenges from your rival players

This is a massive deterrent, and it's hard to race this deck once you stack up a bunch of lifegain effects like Soul's Attendant and Daxos, Blessed by the Sun

Minnie Mouse has a powerful card search ability that could help make things more interesting, enabling you to search for that particular character you need just when you need it