Mardu Energy floods the board with efficient 1-drops — Ragavan, Guide of Souls, and Ocelot Pride — then leverages Goblin Bombardment as a sacrifice outlet to convert creatures into direct damage through your removal. Chalice of the Void on one simultaneously shuts off most of their key threats and Galvanic Discharge; trim Spell Snare and a copy of Orim's Chant to reduce conflict with your own Chalice. High Noon taxes their explosive multi-spell turns, buying critical time to find Wrath of the Skies or Supreme Verdict before the board gets too wide. Post-board they bring Thoughtseize, Wear // Tear, and Fulminator Mage, so prioritize setting up Isochron Scepter with open mana for protection rather than tapping out greedily, and use Solitude aggressively to deny Goblin Bombardment the free damage it needs to close games.