Ravages of War is a strong card with an effect that can completely take over a game
The final chapter transforms them into 5/5 creatures, and while this effect only lasts for a turn, its more than enough if you consider using it as your win condition
For example, Lillies Clefairy ex could work with Xatu's Clairvoyant Sense to bring Energy cards into play, and use the Surging Sparks Pikachu ex to fill the bench
If you're not in the thick of the daily grind, don't stress about it
Geological Appraiser Its easy to compare Geological Appraiser directly to Bloodbraid Elf, but repurposing cascade into discover and having this be an ETB instead of a cast trigger leads to way more combo potential, which earned the Appraiser an increased casting cost with its Arena rebalance
The book side is sometimes relevant, especially when converting to your janky infinite mana and storm wins via Hullbreaker Horror and Jadzi, Oracle of Arcaivos, but in my experience, youre more interested in bouncing the book back to your hand than actually using it