And can we find a way to beat them without joining them
Anzrag, the Quake-Mole Ares, God of War Bhaal, Lord of Murder Birgi, God of Storytelling Djeru and Hazoret Havi, the All-Father Hazoret the Fervent Hazoret, Godseeker Ilharg, the Raze-Boar Iroas, God of Victory Keranos, God of Storms Klothys, God of Destiny Lady Loki, Agent of Chaos Loki Laufeyson Loki, God of Lies Loki, the Deceiver Mogis, God of Slaughter Ojer Axonil, Deepest Might Purphoros, Bronze-Blooded Purphoros, God of the Forge Purphoros, God of the Forge Sif's Spearmaster Surtr, Fiery Jtun The Locust God The Scorpion God Thor Odinson Thor, Asgard's Avenger Thor, God of Thunder Thor, Guardian of Midgard Tiamat Tom Bombadil Toralf, God of Fury Xenagos, God of Revels
Every time your horrors deal combat damage, opponents mill that much, and at your end step, you can steal something from their graveyard that hit the yard that turn
Though undoubtedly strong, this card is probably a bit too slow to be main-deckable in Modern: three mana for the sword, two more to actually equip it, and then you have to get through to deal combat damage as well