The deck had a bit too much air and not great mana, but Kaldheim is fixing both of those problems
She costs four for a 3/4
However, Grixis gives you access to plenty of sacrifice and recursion, so just blink or off Sol before he turns, bringing him back to do it all again and potentially buffing Orca in the process
Most instances of either gating condition are on activated abilities (most of which don't cost mana and therefore need a limiting condition), neatly solving the issue I'm about to mention, but consider this example: We're playing Innistrad Crimson Vow draft
This has absolutely everything you need to get a game going, and comes in at under a tenner
For these reasons and more, Jerome opted not to play the card, but Yannick had one very good reason why he should: Arcana Force 0 - The Fool