Both of these cards see play in Modern in Soul Sisters lifegain-style decks, and both are actually very powerful in the right shell
And then it wins with well, thats a good question
If you look back at some of the defining creature-based decks from the first decade of Magic, decks like Rebels and Simic Madness along with cards like Morphling, theyre all laughably bad compared to the competitive-level creatures printed in the last decade
Fall of Cair Andros I love a good spellslinger deck, and this LOTR card helps shore up a common problem with many of them: having to use up damage spells on creatures instead of players
Cavern of Souls If Aether Vial is the heart of creature decks, that makes Cavern of Soulswell, the soul
No matter which games you have played, I hope you find something that makes you nostalgic in this set