all sliver cards mtg Hivelord Sliver Tribal Magic EDH Commander Deck – CommanderComplete Sliver creatures you control have When this creature enters the battlefield Dementia Sliver (Card) | EDHREC

[c]Esper Sentinel[/c] discourages opponents from spending all their mana on spells, and [c]Leonin Arbiter[/c] makes it difficult for players to search their libraries

Sure, you only get to venture into the dungeon when you untap the artifact and let its victim go, but still

Capacity: up to 1,150 cards per drawer

Then look at the tribal support

1 Traditional foil rare or mythic rare with the showcase Ring treatment, a borderless scene rare or mythic rare, a borderless land, an extended-art Commander mythic rare, or a surge foil Realms and Relics mythic rare In the final slot of The Lord of the Rings: Tales of Middle-earth Collector Boosters, you can find 1 of 30 Realms and Relics mythic rares in surge foil (0.8%)

I'm running 11 instants, 7 sorceries and zero artifacts, so this card may not last long in the deck