Advanced Crystal Beast Amber Mammoth X EARTH Level 4 [ Beast / Effect ] ATK 1700 DEF 1600 If "Advanced Dark" is not in a Field Zone, send this monster to the GY
For starters, if youre using a lot of cards that can create extra mana, whether that be mana rocks or ramp cards, then you can occasionally use fewer lands

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It'd be a literal shock to take 30+ damage at the start of the game for just one Electric energy
Then I tried the Copper Embossing Powder and felt like it was a pretty close match to the color I wanted