While they're all decent cards, they could be replaced by something that plays better with Valgavoth
What makes this card especially playable is its relevant protection
Currently for Commanders, The First Sliver and Sliver Overlord give you card advantage, the latter and Sliver Queen are combo outlets, and Sliver Hivelord and Sliver Legion are there to increase staying power and damage
Whenever a creature an opponent controls becomes the target of a spell or ability you control, put a bounty counter on that creature
When the Mirran resistance arrived, the furnace dwellers looked to Urabrask for guidance
That being said, Ursulas Return had some memorable moments, including the co-op Illumineers Quest that got released (a first for Lorcana) and it also featured some of the most gorgeous Lorcana enchanted cards to date