The reason Opt is so valuable is that it is instant, an effect easily worth a 25% decrease in power for this kind of card
Take Hollow One, which Mason Clark talked about in his most recent article
Released in the Modern Horizons 3 MTG set last year, Ripples of Undeath is a two mana enchantment that's a super cool card advantage spell for graveyard decks
Tinker Time (Green-Blue-Red deck)100-card ready-to-play March of the Machine Commander Deck with 2 Traditional Foil Legendary cards and 98 nonfoil cards 10 Planechase cards and 1 planar die to trigger unique abilities and jump across the Multiverse 2-card Collector Booster Sample Packcontains 2 special treatment cards from the March of the Machine main set, including 1 Rare or Mythic Rare and at least 1 Traditional Foil card Deck introduces 10 never-before-seen MTG cards to Commander Accessories1 Foil-Etched Display Commander, 10 double-sided tokens, Life Tracker, and deck box The Best March of the Machine Commander Deck For Value Knights are the big winner in terms of financial investment

they preserve the history and lineage of their clan through impenetrable defenses and sacred ancestral Kin-Trees INTRODUCES 10 COMMANDER CARDSEach deck introduces 10 never-before-seen Commander cards to Magic: The Gathering Temur Roar Commander (1) Creature (34) Dragonmaster Outcast Deceptive Frostkite Dragonlord's Servant Gadrak, the Crown-Scourge Nogi, Draco-Zealot Sarkhan, Soul Aflame Taurean Mauler Atsushi, the Blazing Sky Leyline Tyrant Opportunistic Dragon Parapet Thrasher Territorial Hellkite Thunderbreak Regent Thundermane Dragon Vengeful Ancestor Verix Bladewing Glorybringer Harbinger of the Hunt Nesting Dragon Rapacious Dragon Skarrgan Hellkite Stormbreath Dragon Stormshriek Feral Whirlwing Stormbrood Hammerhead Tyrant Hellkite Courser Keiga, the Tide Star Lathliss, Dragon Queen Scourge of the Throne Steel Hellkite Atarka, World Render Broodcaller Scourge Dragonlord Atarka Ureni of the Unwritten Instant (6) Rapid Hybridization Reality Shift Beast Within Chaos Warp Spit Flame Draconic Lore Sorcery (9) Farseek Zenith Festival Kodama's Reach Migration Path Storm's Wrath Become the Avalanche Selvala's Stampede Will of the Temur Blasphemous Act Enchantment (7) Dragon Tempest Elemental Bond Temur Ascendancy Encroaching Dragonstorm Frontier Siege Breaching Dragonstorm Reflections of Littjara Artifact (6) Sol Ring Arcane Signet Fellwar Stone Talisman of Creativity Talisman of Impulse Dragon's Hoard Land (37) Bountiful Landscape Cinder Glade Command Tower Evolving Wilds Exotic Orchard Flooded Grove Forest x5 Frontier Bivouac Haven of the Spirit Dragon Hinterland Harbor Island x3 Karplusan Forest Kessig Wolf Run Mossfire Valley Mosswort Bridge Mountain x6 Path of Ancestry Rockfall Vale Rootbound Crag Sheltered Thicket Shivan Reef Sulfur Falls Temple of Abandon Temple of Mystery Temple of the Dragon Queen Yavimaya Coast Commander, Theme, and Strategy Temur Roar is a big ol creature deck, blending a ferocious 4+ power matters theme with dragons

The elves of Lorwyn are famous about feeling that others don't match up to their high ideal of perfection, so the ETB being a kill spell that kills non-Elves plays squarely into that flavor