First, lets briefly look at some bad flavor text from other card games, both so we can learn what doesnt work and also so I can poke fun at Magic: The Gathering
Tricky Terrain and Tricky Terrain Collector's Edition 0002_MTGMH3_CmdFace: Omo, Queen of Vesuva 0008_MTGMH3_CmFeatur: Jyoti, Moag Ancient 0145_MTGMH3_Vanity: Omo, Queen of Vesuva 0141_MTGMH3_ComPorEc: Omo, Queen of Vesuva 0140_MTGMH3_ComPorEc: Jyoti, Moag Ancient 0149_MTGMH3_EclVanty: Omo, Queen of Vesuva Check out the cards from Tricky Terrain and Tricky Terrain Collector's Edition in the Modern Horizons 3 Card Image Gallery
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Sentinel Sarah Lyons doesn't have to have been on the battlefield at the point in the turn where an artifact entered the battlefield under your control
You dont need to get around hand size restrictions as much, and Crypt Ghast also provides a form of extra mana and plays into your overall strategy, so this seemed like a good swap
Getting rid of protection is also saucy