That will normally net less than Malanthrope and creatures, but its still done the job, namely eating the graveyard
But you should use the right strategy for this
Adventures in the Forgotten Realms Set Boosters contain: At least 1 rare or mythic rare card (approximately 27% of Set Boosters contain 2 rares or mythic rares, 3% contain 3, and it's even possible to open 4 though that's less than 1% of the time.) 1 Traditional foil card of any rarity 1 Rulebook, module, or borderless common or uncommoncheck out the Collecting Adventures in the Forgotten Realms article for details
Wojek Investigator Card advantage in white often comes with conditions, and Wojek Investigator delivers it cleanly
If a card that has mutate also has flash, like Pouncing Shoreshark, you can flash it in for its mutate cost since its an alternate casting cost rather than an activated ability
1 Rite of Consumption