in reality, the most common counters they use dont require any mana at all (looking at you Force of Will)
Alolan Marowak is classified as a 2-Diamonds card in the Celestial Guardians set
During the dueling sequences, I found it to be a mixed bag
in Season 4 he uses one with a blue trim
Cut of the Profits | Illustration by Donato Giancola In laywizards terms, you can copy a spell with casualty when you cast it by paying an additional cost of sacrificing a creature with power N or greater. For example, sacrificing an Expendable Lackey for a second copy of Rooftop Nuisance
Yes, it costs a good chunk of mana, but late in the game, it can refresh your hand right before your turn at instant speed, giving you a chance to find what you need