Your new BFF toothpick can solve the problem quite nicely, however
It leans into speed, clean decision-making, and constant pressure
In your average 2-color deck, quintuple black mana just isnt attainable
Actively trade for these copies when you can
In the case above, the first layer was the copies of Burst of Energy on the stack: 'Untap Kiki-Jiki and copy a Doubling season for each Burst of Energy on the stack' The second layer was the number of Fossil Finds on the stack: 'Tap Serra's Sanctum and replicate Burst of Energy a LOT of times for each Fossil Find on the stack' Now, note that some of our earlier builds were running cards like Mycosynth Lattice--this meant that instead of having six different kinds of mana (all five colours and colourless) we had a single kind of mana, and therefore fewer total resource pools
Learn more about the set in our Ursulas Return product guide, and see the complete set via our Ursulas Return spoilers card list