In this precon Yshtola is a really good card, but in a custom deck built around Yshtola, this card is almost as remove-on-sight as a Rhystic Study
He can then nip in in the skies for damage, helping you to make the most of Tymna's ability as well
Also, it can target the opponent, so you can actually burn your opponent out with it (Ive done it and it has been done to me in Commander of all formats)
In exchange, you essentially get a free counterspell
Whether you got a Jump In Token, earned 1,000 gold, or have an extra 200 gems, this event is as cheap as they come
She comes with a +1/+1 that buffs your tokens and a -2 that can double the number of tokens you make in a turn