A person who does what Grishnak does, by the way, is known in Human domains as a haruspex, and the practice is haruspicy. If Grishnak is indeed skilled at haruspicy, then logically we can extrapolate that, with enough practice and luck, a Goblin can actually be competent at some things
Creature Enchantment - Horror Color tag templates(None) Nihilith Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Suspend 7 (Rather than cast this card from your hand, you may pay and exile it with seven time counters on it
It can also be the hardest to keep up with because of its nature, as only a handful of sets are legal in Standard in MTG at a time, and some rotate out each year
Does Soulbond Use the Stack
Arden Angel happens to work well as it has you pick a random number from one to four in order to trigger its effect, which is easily replicated with a four-sided die