War Historian's last ability starts to apply as soon as it's declared as an attacker that's attacking a battle, and it applies for the entire turn
Cards like The Ozolith are great for catching counters on permanents that would otherwise lose them, and Luxior, Giada's Gift turns any counter-heavy creature into a wildly strong beater
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The deck then features a multitude of spells that allow you to roll dice including creatures (Celebr-8000, Chaos Channeler, Clay Golem, Earth-Cult Elemental, Herald of Hadar, Hoarding Ogre, Iron Mastiff, Lightfoot Rogue, Monoxa, Nothic, Swarming Goblins), Sorceries (Attempted Murder, Myrkul's Edict, Recruitment Drive, Thunderwave), instants (Contraband Livestock, Farideh's Fireball, Six-Sided Die), and many more
If it's earlier in the game and you're really in need of more lands in play, you can channel Greater Tanuki to get a basic land card into play tapped
Next turn, something else dies, then youd have four Compy SwarmCompy Swarms, depending on how many survive