Most of the time, these lands show up only in Limited formats, where its pretty useful to have the option to cash them in for a card
When you add in land-searching options like Town Greeter and the landcyclers, as well as four-mana ramp spells like Reach the Horizon, getting the mana together to cast Omega, Diamond Weapon or Coliseum Behemoth is a question of when, not if
Furret's second move is called Quick Blow and this move takes 2 colorless energy cards and does 20 damage unless you flip a heads then it does 40 damage instead of 20
Finally, Ill put the lands back in my deck, shuffle the whole thing together then play a few games to see if this new mana curve made my deck any better
All without recurring fees
You can rest any of your cards to activate Mihawks effect, which means you can rest a Character, Don, or even a Stage for the 3 Active Don