Creatures that can deal damage to opponents, boost attacking creatures or make crature tokens, such as Valakut Invoker, Orthion, Hero of Lavabrink, Walking Ballista, and Rhonas the Indomitable
First off are these three mana rocks
Abbot of Keral Keep Act on Impulse Alania's Pathmaker Anep, Vizier of Hazoret Archaic's Agony Ardent Dustspeaker Asgardian Inspiration Atsushi, the Blazing Sky Blazing Crescendo Bonehoard Dracosaur Brazen Cannonade Breeches, Eager Pillager Breya's Apprentice Burning Curiosity Cait Sith, Fortune Teller Capricious Sliver Case of the Burning Masks Caves of Chaos Adventurer Chandra, Fire Artisan Chandra, Flameshaper Chandra, Heart of Fire Chandra, Legacy of Fire Chandra, Pyromaster Chaos Channeler Charred Foyer // Warped Space Chase Stein, Runaway Cleon, Merry Champion Clockwork Percussionist Commune with Lava Count on Luck Crimson Caravaneer Crimson Operative Crossover Collaboration Daredevil, Fearless Fighter Dark-Dweller Oracle Diversion Specialist Duchess, Wayward Tavernkeep Ecstatic Beauty Electrostatic Blast Emberheart Challenger Embodiment of Flame Embrace the Unknown End-Blaze Epiphany Endrider Spikespitter Equilibrium Adept Evendo Brushrazer Experimental Synthesizer Fateful Tempest Feldon, Ronom Excavator Fire Giant's Fury Fire-Brained Scheme Fires of Mount Doom Flameskull Galvanic Relay Geistflame Reservoir Gila Courser Glimpse the Impossible Goblin Researcher Grotag Night-Runner Harnesser of Storms Harnfel, Horn of Bounty Haste Magic Headliner Scarlett Hedron Detonator Heroes for Hire Heroes' Hangout Ignite the Future Impossible Inferno Inspired Tinkering Inti, Seneschal of the Sun Irascible Wolverine
You keep energy counters until you pay them or something causes you to lose the counters
'Victory and power at any cost' is the mindset of a black player, as they sacrifice, extort, and drain their way to victory
For many of the most powerful cards in the game, their power level is balanced out by being extremely expensive to cast (meaning you cant cast them until the late-game), or forcing players to make another big sacrifice to bring it into play
