The Mycotyrant Finally a fungus commander thats better than Slimefoot, the Stowaway
The W/U ones you just kind of throw cards at them and see if you win fast enough or get far enough ahead to leave up Abrade
These cards work exactly the way you asked, you cast one half of the card for the casting cost, get that effect and the whole card goes to the graveyard
Perhaps that's why a mint copy of Lord of the Pit sold for over $100,000 in 2023
If the chip damage and the continual drain from your Zulaport Cutthroat isnt enough, Exsanguinate can push you across the finish line
Casting Cost: Card Text: Tribute 3 (As this creature enters the battlefield, an opponent of your choice may place three +1/+1 counters on it.) When Snake of the Golden Grove enters the battlefield, if tribute wasn't paid, you gain 4 life