You can always cast the spell without paying its Casualty cost and keep your creature alive, if you're feeling particularly sentimental that day
That card has slowly risen in value to about $30, so we might expect Scythecat Cub to eventually settle at a similar figure, though obviously it's going to depend on the relative supply of the two cards
(Roll a D10 to determine the random card.) Based on the latest market prices tracked on TCG Stacked
So, you cast a sorcery spell
T3feri, 3feri, Tef3ri Teferi, Time Raveler, which has a casting cost of three compared to the five mana cost of Teferi, Hero of Dominaria, which shared part of the same Standard season with it
Sorin Markov is running a little low on archetypes that support him with both high mana and high black cost requirements