Its especially spicy in decks that care about creature-based synergy or top-deck manipulation
These are built around things like sacrificing Bloodghast or another self-recursive dork to a mana making like Ashnod's Altar than triggering Blood Artist and bringing it back for what mana you spent
When paired with cards such as Teferi's Puzzlebox that force players to discard their hands and redraw a new hand, Leovold could lock opponents out of the game, preventing them from drawing and cards and bringing the game to a screeching halt
Kronk - Head of Security will let the player move a character with a cost of 5 or less into play for free whenever Kronk banishes a character
Don't neglect Fossil Cards either, as these can aid us in a pinch, and work very well against the popular Sabrina Support Card
Hopefully, as they've said, they're moving away from the Gatewatch so we could see a new direction in mono-white Planeswalkers