mtg cards with the ring tempts you Stainless Steel Token - Metal Tokens Call of the Ring |

If that card is returned to its owner's hand this way, you may pay

You get four spells for free just for casting it

You can check out the full Cube list here and the details of the Finals here

Aura Barbs Barbed Lightning Betrayer's Bargain Blast from the Past Blooming Blast Blur of Blades Breath Weapon Breath of Fire Burn the Accursed Burning Hands Burst Lightning Caught in the Crossfire Chandra's Outrage Chandra's Pyrohelix Char Cinderclasm Cleansing Beam Combustion Technique Conduct Electricity Dark Temper Dead // Gone Deem Worthy Delayed Blast Fireball Demon Bolt Dreadmaw's Ire Eelectrocute Electrostatic Bolt Explosive Derailment Farideh's Fireball Fated Conflagration Fever Charm Fiery Cannonade Fiery Impulse Fire // Ice Fire Magic Firebending Lesson Fires of Undeath Fires of Victory Flame Burst Flame Discharge Flame Javelin Flame Sweep Flame-Blessed Bolt Flames of the Raze-Boar Frantic Firebolt Frost Bite Fuel the Flames Galvanic Blast Galvanic Bombardment Geistblast Ghostfire Slice Glacial Ray Grab the Reins Great Train Heist Guerrilla Tactics Gut Shot Hanabi Blast Heated Argument Hexgold Slash Hungry Flames Inflame Jennika's Technique Kami's Flare Kindle Kozilek's Return Lava Storm Lithobraking Lunge Magma Jet Magma Spray Marvelous Melee

Your reward for Haste-y beats is a 5/5 Dragon Spirit with Flying