Until end of turn, you may cast that card and you may spend mana as though it were mana of any color to cast that spell
all hail the skunk-tail
Raging Swordtooth Rampaging Geoderm Rampart Smasher Raph & Mikey, Troublemakers Ravager Wurm Ravager of the Fells Ravenous Tyrannosaurus Red XIII, Proud Warrior Redshift, Rocketeer Chief Regisaur Alpha Relentless Hunter Rhino, Barreling Brute Rhox Brute Riftburst Hellion Rip-Clan Crasher Rock Basilisk Rosheen Meanderer Rosheen, Roaring Prophet Roxanne, Starfall Savant Rubble Slinger Rubblebelt Raiders Rubblebelt Rioters Rubblebelt Runner Rubblehulk Ruby, Daring Tracker Ruination Rioter Ruination Wurm Rulik Mons, Warren Chief Rumbling Slum Ruric Thar, the Unbowed Rydia, Summoner of Mist Samut, Vizier of Naktamun Samut, Voice of Dissent Sarinth Greatwurm Savage Packmate Savage Ventmaw Savageborn Hydra Sawback Manticore Scab-Clan Giant Scab-Clan Mauler Scarlet Spider, Ben Reilly Scarwood Goblins Scuzzback Marauders Scuzzback Scrapper Security Rhox Segmented Wurm Shivan Wurm Skarrg Guildmage Skarrgan Skybreaker Sparkcaster Spellbreaker Behemoth Spider Manifestation Spined Sliver Stampede Surfer Stangg Stangg, Echo Warrior Stature, Young Avenger Stonebrow, Krosan Hero Strax, Sontaran Nurse Streetbreaker Wurm Strider, Ranger of the North Sunastian Falconer Sunder Shaman Svella, Ice Shaper Tahngarth, First Mate Tana, the Bloodsower Tannuk, Memorial Ensign Targ Nar, Demon-Fang Gnoll Tattermunge Duo Tattermunge Maniac Tattermunge Witch Terra, Magical Adept
With access to mana generation, impulse draw and plenty of ways to close games, red is always a good choice
So step number one is to get Feather on board and keep it there
The upkeep step of its controller begins
