TCG, Book of Moon is a card that has seen plenty of play throughout its lifespan
Trap Cards, and their effects on the field, cannot be activated
you can have as many of those as you need in your deck

Hans, Run!" Agency Outfitter Ajani's Aid Alpine Houndmaster Angel's Herald Angrath's Fury Arachnus Spinner Ashiok's Forerunner Asmoranomardicadaistinaculdacar Avarax Basri's Aegis Behemoth's Herald Bogbrew Witch Chandra's Firemaw Chandra's Flame Wave Chandra's Outburst Dark Supplicant Daru Cavalier Demon's Herald Diligent Farmhand Domri's Nodorog Dovin's Dismissal Dragon's Approach Dragon's Herald Dragonstorm Forecaster Elspeth's Devotee Elspeth, Undaunted Hero Elvish Clancaller Embermage Goblin Ethereal Elk Forging the Tyrite Sword Garruk's Warsteed Gate to the Afterlife Gideon's Battle Cry Gideon's Resolve Gigantiform Goblin Tutor Goldmane Griffin Grand Master of Flowers Grasping Current Growth-Chamber Guardian Infectious Bloodlust Isperia the Inscrutable Jace's Ruse Journey for the Elixir Kassandra, Eagle Bearer Kyscu Drake Liberating Combustion Liliana's Influence Liliana's Scorn Llanowar Sentinel Magitek Infantry Nazahn, Revered Bladesmith Niambi, Faithful Healer Nissa Revane Nissa's Encouragement Oko's Hospitality Ral's Dispersal Raven Clan War-Axe Renowned Weaponsmith Rhythmic Water Vortex Rowan's Stalwarts Ruin in Their Wake Say Its Name Screaming Seahawk Shadowborn Apostle Shaun & Rebecca, Agents Sift Through Sands Silver Surfer, Galactus's Herald Smuggler Captain Sorin's Guide Sphinx Ambassador

Gonti purists might want to stick with the aetherborn, but Black Cat is an option for people trying to go bigger
Thanks to Fires of Invention, Rootwire Amalgam can be a surprise 15/15 with Haste ready to devastate your opponent at a moments notice