You now have three colourless mana floating, and can do it again: tap Basalt Monolith to make three more colourless mana, pay three to untap it, copy the ability using two colourless and Rings of Brighthearth, untap Basalt Monolith once, tap it to make three more colourless, and then untap it with the copied ability
Unless you're way cooler than we are (not a high bar, we admit), you don't own a blacklight
If you were only using basic lands, [[Wooded Foothills]] could only get you a red or green source
If youve got Green Goblin flipped and Necropotence on the field, you can pour enough life into Necros ability essentially to draw your entire deck
We used the rest of our field as defenders, paid the mana cost for Labyrinth Adversary's card effect each turn, and whittled away at the opponent's health
Ulamog, the Infinite Gyre - cast trigger removal that becomes free