They can be played in any deck, no matter the colors, and theyre sure to stand the test of time as solid investments for your collection

Abolisher of Bloodlines Adanto, the First Fort Ashling, Rekindled Ashling, Rimebound Assimilate Essence Atzal, Cave of Eternity Avacyn, the Purifier Awoken Horror Azcanta, the Sunken Ruin Barracks of the Thousand Black Chocobo Blight Titan Blighted Burgeoning Blightsower Thallid Bloated Processor Brigid, Clachan's Heart Brimaz, Blight of Oreskos Brutal Cathar Chrome Host Seedshark Compleated Conjurer Compleated Huntmaster Conqueror's Foothold Converter Beast Corruption of Towashi Cult of the Waxing Moon Curse of Leeches Deadly Dancer Demon-Possessed Witch Elvish Vatkeeper Essence of Orthodoxy Excise the Imperfect Eyes of Gitaxias Furnace Gremlin Geode Grotto Gift of Compleation Glissa, Herald of Predation Glistening Dawn Gold-Forge Garrison Grub, Storied Matriarch Hideous Fleshwheeler Huntmaster of the Fells Ichor Drinker Infected Defector Injector Crocodile Itlimoc, Cradle of the Sun Jurassic Park Lost Vale Lunarch Inquisitors Malady Invoker Marauding Dreadship Merciless Repurposing Metzali, Tower of Triumph Mycoid Maze Neglected Heirloom Norn's Inquisitor Olag, Ludevic's Hubris Phyrexian Awakening Primal Wellspring Progenitor Exarch Ravager of the Fells Revealing Eye Sanctum of the Sun Sculpted Perfection Searing Barb Sephiroth, One-Winged Angel Shadows' Lair Shinryu, Transcendent Rival Skyclave Invader Spires of Orazca Spitfire Bastion Sunder the Gateway Sunfall

The loss of Spellskite in the maindeck also lowers the number of colorless mana symbols
If were just looking for Dinosaurs, Ripjaw Raptor is decently high quality, but I guess Im just not sold on the Dinosaur package being as good as the Energy package yet
Its never going to cost you that much, and it pays you back 2 mana the turn it comes down anyway