The most important thing that a creature-land can be is efficient, and while members of the new cycle in Adventures in the Forgotten Realms tend to have fairly steep activation costs, they do gain some points back for this by entering the battlefield untapped on the early turns of the game
The first place to look is in the lower left corner of the card see that three-letter code
When you Erode your own Land with Earthbent +1/+1 counters, a number of things happen
For six mana, this is a Black Curse that has a madness cost of four mana
Commander (1) Creature (23) Assaultron Dominator Brotherhood Scribe Curie, Emergent Intelligence Loyal Apprentice Red Death, Shipwrecker Steel Overseer James, Wandering Dad Nick Valentine, Private Eye Paladin Danse, Steel Maverick Rex, Cyber-Hound Synth Eradicator Arcade Gannon Elder Owyn Lyons Robobrain War Mind Solemn Simulacrum Whirler Rogue Liberty Prime, Recharged Sentinel Sarah Lyons Sentry Bot Shaun, Father of Synths Synth Infiltrator The Motherlode, Excavator Behemoth of Vault 0 Instant (8) Dispatch Swords to Plowshares Electrosiphon Thirst for Knowledge Crush Contraband Glimmer of Genius Unexpected Windfall Bottle-Cap Blast Sorcery (4) One with the Machine Austere Command Open the Vaults Wake the Past Enchantment (5) Overencumbered Nerd Rage Mechanized Production Vault 112: Sadistic Simulation Vault 13: Dweller's Journey Artifact (22) Everflowing Chalice Sol Ring Wayfarer's Bauble Arcane Signet Automated Assembly Line Expert-Level Safe Lightning Greaves Mind Stone Plasma Caster T-45 Power Armor Talisman of Conviction Talisman of Creativity Talisman of Progress Thought Vessel Brotherhood Vertibird C.A.M.P
