Rolands special ability to collect a clue from a location after defeating an enemy wouldnt work in this example because I would first have to resolve the fight in the Hallway, then resolve the Move action which would reveal the Clues
World Chalice and Sunavalon have normal monsters that they need to play for their combos, and Link Spider turns those into useful material for combos , making it an amazing tool for some decks that have to play a few bricks to function
This is the foundation every supplier asks for
Promo Info BOOSTER CYBER EDEN [BT-22] CLOSECLOSE BT22-037 C Digimon Lv [Counter] Blast Digivolve (Your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] You may play 1 5000 DP or lower Digimon card from your hand without paying the cost
Decree of Justice helped to make Mono-White Control a winner when it was printed, which I played heavily and even wrote a primer on it here ( You can wait until EOT, tap out and cycle for a ton of 1/1 and then you drew a card and it was hard to answer since you cannot counter a cycle since it wasn't cast
The odds of getting it were very very low