They're generally written "[Cost]: [Effect]." Some keyword abilities are activated abilities and will have colons in their reminder text
Sterling Grove Sterling Grove has been a staple of enchantress decks for years
Three Dog, Galaxy News DJ Drawing cards in Boros feels every bit as good as it does in Black and Red

Full Decklist 4 Mountain 9 Plains Adarkar Wastes Aether Channeler Aetherize Agate Instigator Angel of the Ruins Arcane Signet Arthur, Marigold Knight Azorius Signet Battlefield Forge Bident of Thassa Blade Splicer Boros Signet Boss's Chauffeur Calamity of Cinders Cascade Bluffs Castle Ardenvale Chart a Course Circuit Mender Clifftop Retreat Cloudblazer Combat Celebrant Command Tower Curiosity Crafter Cut a Deal Devilish Valet Dusk // Dawn Echoing Assault Elspeth, Sun's Champion Evolving Wilds Exotic Orchard Fellwar Stone Ferrous Lake Fortune Teller's Talent Glacial Fortress Hanged Executioner Helm of the Host Illusory Ambusher Inferno Titan Inspiring Overseer Izzet Signet Jacked Rabbit Jazal Goldmane Junk Winder Loyal Warhound Luminous Broodmoth Martial Coup Mind Stone Murmuration Mystic Monastery Ornithopter of Paradise Path of Ancestry Path to Exile Plumecreed Escort Pollywog Prodigy Pull from Tomorrow Rapid Augmenter Rapid Hybridization Restoration Angel Rose Room Treasurer Rowdy Research Rugged Prairie Seachrome Coast Selfless Spirit Shield Broker Shivan Reef Siege-Gang Commander Skyclave Apparition Skycloud Expanse Sol Ring Solemn Simulacrum Spirited Companion Stolen by the Fae Storm of Souls Sulfur Falls Sun Titan Sunscorched Divide Temple of Enlightenment Temple of Epiphany Temple of Triumph Terramorphic Expanse Tetsuko Umezawa, Fugitive Thopter Engineer Thriving Bluff Thriving Heath Thriving Isle Time Wipe Zinnia, Valley's Voice Animated Army Expending is a big part of the red/green archetype in Bloomburrow, where you want to spend as much mana as possible

Elemental Badge If the Pokmon this card is attached to has Vaporeon V, Jolteon V, or Flareon V in its name, it pays 1 [C] less to use its attacks
Eevee ex can also evolve into any of its evolved forms' Pokmon ex cards, which allows players to use an Eevee with some heft (200 HP as a Basic Pokmon card is impressive) to play evolutions on