The Haunt of Hightower The Haunt of Hightower exploits discard as a source of counters to become a Voltron commander
Rounding out the list are some noncreature spells with strong Legends synergy, mostly ramp like Leyline Immersion and Relic of Legends but also other stuff like board wipe with Urza's Ruinous Blast and mass reanimation with Primevals' Glorious Rebirth
Scion of Draco also fits multicolor decks pretty well, being able to give plenty of combat-related bonuses to gold creatures, and surprise, surprise, Leyline of the Guildpact also helps with these bonuses, extending them to all creatures including the Scion itself

Creatures (47) 1 Krosan Tusker 1 Coiling Oracle 1 Experiment Kraj 1 Trygon Predator 1 Saffi Eriksdotter 1 Yoked Plowbeast 1 Noble Hierarch 1 Dauntless Escort 1 Bant Sojourners 1 Sun Titan 1 Dragonlord Ojutai 1 Surrak, the Hunt Caller 1 Selfless Spirit 1 Curator of Mysteries 1 Shefet Monitor 1 Vizier of Tumbling Sands 1 Greater Sandwurm 1 River Serpent 1 Nimble Obstructionist 1 Striped Riverwinder 1 Shalai, Voice of Plenty 1 Arixmethes, Slumbering Isle 1 Knight of Autumn 1 God-Eternal Rhonas 1 God-Eternal Oketra 1 Windcaller Aven 1 Dryad of the Ilysian Grove 1 Flourishing Fox 1 Valiant Rescuer 1 Herald of the Forgotten 1 Drannith Healer 1 Imposing Vantasaur 1 Avian Oddity 1 Esper Sentinel 1 Gretchen Titchwillow 1 Saryth, the Viper's Fang 1 Robaran Mercenaries 1 Malanthrope 1 Haywire Mite 1 Guardian Scalelord 1 Firemane Commando 1 Gold-Forged Thopteryx 1 Tranquil Frillback 1 Generous Ent 1 Eagles of the North 1 Dauntless Dismantler 1 Topiary Panther Lands (39) 8 Forest 5 Plains 1 Reflecting Pool 4 Island 1 Yavimaya Coast 1 Krosan Verge 1 Hallowed Fountain 1 Bant Panorama 1 Seaside Citadel 1 Exotic Orchard 1 Glacial Fortress 1 Command Tower 1 Hinterland Harbor 1 Temple of Plenty 1 Canopy Vista 1 Blighted Woodland 1 Fortified Village 1 Path of Ancestry 1 Sea of Clouds 1 Rejuvenating Springs 1 Deserted Beach 1 Spara's Headquarters 1 Meticulous Archive 1 Lush Portico 1 Hedge Maze Spells (13) Here are the deck stats from our friends at Archidekt: Note: the mana curve looks much better when you put the cycling creatures in the mana columns equal to their cycling costs, since I mostly plan on cycling the larger creatures

Another great use is that, as mobilize is a triggered ability, it can stack
Gonna pick up a few singles and call it a day. Same here, says u/No-Pilot-1252