the spree cards are all amazing, and you'll find a few of them on this list
Since Gravecrawler only costs one black mana, we sacrifice and recast it infinitely with just a Phyrexian Altar and an available graveyard
Oh I know, they must have made dueling holograms, it's no wonder they just vanish upon being defeated

Wade into Battle Kalemne, Disciple of Iroas | Illustration by Jason Chan Commander (1) Creature (30) Stinkdrinker Daredevil Taurean Mauler Dawnglare Invoker Magus of the Wheel Desolation Giant Fumiko the Lowblood Hunted Dragon Stoneshock Giant Thundercloud Shaman Warchief Giant Oreskos Explorer Herald of the Host Kalemne's Captain Anya, Merciless Angel Sunrise Sovereign Hammerfist Giant Inferno Titan Dawnbreak Reclaimer Sun Titan Hostility Jareth, Leonine Titan Victory's Herald Sandstone Oracle Hamletback Goliath Arbiter of Knollridge Borderland Behemoth Dream Pillager Magma Giant Angel of Serenity Gisela, Blade of Goldnight Instant (2) Fall of the Hammer Orim's Thunder Sorcery (5) Breath of Darigaaz Fiery Confluence Disaster Radius Earthquake Meteor Blast Enchantment (5) Curse of the Nightly Hunt Banishing Light Faith's Fetters Rite of the Raging Storm Warstorm Surge Artifact (17) Sol Ring Blade of Selves Boros Signet Coldsteel Heart Fellwar Stone Lightning Greaves Mind Stone Thought Vessel Basalt Monolith Boros Cluestone Darksteel Ingot Loxodon Warhammer Urza's Incubator Worn Powerstone Seer's Sundial Dreamstone Hedron Staff of Nin Land (40) Ancient Amphitheater Blasted Landscape Boros Garrison Boros Guildgate Command Tower Drifting Meadow Evolving Wilds Forgotten Cave Secluded Steppe Smoldering Crater Terramorphic Expanse Vivid Crag Vivid Meadow Wind-Scarred Crag Mountain x14 Plains x11 Crib Swap Commander, Themes, and Strategy The Boros aggro precon, Wade into Battle uses typical Boros combat strategies with large double strike creatures, effective combat tricks, and some powerful equipment

Its also a big payoff for having poison counters spread around
This card dwarves the rest, and is perfect for educational cards for children, as well as fun novelty drinking cards to use with your mates