I've found this crimson animal defense to be quite fun for the Rotation format.
Endless Treasures - To grab your amazing crimson Curses.
Covenant with Philistia - Can be in deck or Reserve depending on your setup. Feels like Endless Treasures for animals.
I'm running 9 ECs in the main deck:
Esau the Hunter - Grab an animal or play first? Amazing!
The Serpent - CBN block with Serpent's Curse
Devouring Lions - Great for taking out evil humans, especially in a side battle.
Lions - Great for taking out evil humans, especially in a side battle.
Stubborn Heifer - The repeatable nature of the negate can be amazing!
Fire Foxes - Excellent chump block but can just as easily be in the Reserve.
Leviathan - Amazing block, especially with all the negate/interrupts.
The Great Fish - Occasional auto-block vs lone Heroes
Fiery Serpents - I'm trying this out as a battle winner vs bands that gets around Jeremiah's toss. Not sure about it yet.
I'm running 7 EEs in my deck:
Anthropophobia - This only serves as a versatile EE for me. Pair it with blue for added value.
Carcassess - This is a CBN battle winner vs so many popular characters! Searchable with Endless Treasures.
Seized by Babylon - Great interrupt + win the battle even without Babylonians.
Lurking - Used to grab a "negate" character from Reserve.
Scattered - Still amazing after all these years.
Wages of Sin - There's quite a bit this can get between the deck and Reserve.
Pride of Lions - Very fun and occasionally really effective!
I'm running 5 evil cards in the Reserve:
Behemoth - Usually targeted by Lurking for the negate ability but can also be grabbed by Cov w/ Philly or Leviathan.
Withered Plant/The Worm - A second negate target for Lurking.
Negev Lions - Amazing band off Pride of Lions!
Serpent’s Curse - CBN battle winner on The Serpent.
Fire From Heaven - A negate for Leviathan to grab.
These are some other cards that I considered but aren't in the deck right now:
Foolish Shepherd - Seems to pair well with animals. Restricting Dominants is great and banding is always welcome.
Wild Beast - A fourth Lion for Pride of Lions.
Bear - Huge potential with Love and The Holy Spirit if you run those.
Wild Dogs - An interesting initiative animal that can take out a problem Hero.
Scapegoat - I love having this in Reserve to grab on a turn when there's no LS to rescue and I don't have soul gen.
Disagreement Over Mark - Not great at the moment but going to be amazing when GoC releases!
Hypocrisy - CBP battle winner plus bounce is really useful.
Treasures of War - Easy target for Wages if you have issues with Artifacts.
Turncoat - Winning the battle and taking a character is double the fun!
Regrets - Really useful and can be targeted by Wages. But a dead card if my opponent isn't playing evil humans.
Betrayal - Battle winning and drawing!