This is why there has been a ban list for the official tournament scene for almost the entire existence of the competitive formats
You can just as easily buy a card for $5 dollars today and be able to sell it tomorrow for $50
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Once in play, K'rrik is a stellar form of Black mana ramp, allowing each black mana symbol on spells and abilities under its owner's control to function as Phyrexian mana, meaning a player can reduce the costs of their black spells through the payment of life
Toon Summoned Skull and Blue-Eyes Toon Dragon are both respectable Meta targets as well
If you like, you can Exile your own Creature with an Enter the Battlefield trigger (e.g