LSVCube.

LSVCube is a 515-card Cube deck.

The mainboard runs 199 creatures, 67 instants, 56 sorceries, 67 artifacts, 11 enchantments, 21 planeswalkers, and 94 lands, averaging 2.71 mana value across non-land cards. 75% of non-land cards cost 3 mana or less; 13% cost 5 or more.

Notable inclusions: 21 game changers (e.g. Enlightened Tutor, Narset, Parter of Veils, and Mystical Tutor), 16 fast mana (e.g. Dark Ritual, Rain of Filth, and Cabal Ritual), 2 extra-turn spells (Time Walk and Time Warp), 2 free counterspells (Daze and Force of Negation), 3 cheap tutors (Entomb, Wishclaw Talisman, and Green Sun's Zenith), and 8 tutors (e.g. Stoneforge Mystic, Spellseeker, and Trinket Mage).