Fell the Profane / Fell Mire Modal double-faced cards that are lands on one side and spells on the other have proven to be popular in Constructed formats, and Fell the Profane is an example of an excellent one from Modern Horizons 3
Promo Info Tamer Battle Pack 22 WINNER CLOSECLOSE BT13-018 R Digimon Lv.6 Parallel Rare ShineGreymon Color Red Yellow Form Mega Attribute Vaccine Type Light Dragon DP 12000 Cost 12 Digivolve Cost 1 4 from Lv.5 Digivolve Cost 2 4 from Lv.5 Upper Text Digivolve: 3 from Lv.5 w/[RizeGreymon] in name [Start of Your Main Phase][When Digivolving] Until the end of your opponent's turn, 1 of your [Marcus Damon]s is also treated as a 3000 DP Digimon, can't digivolve, and gains Blocker
Its another Skill that sort of replaces Polymerization : once per Duel, you can discard a card to Fusion Summon an Ancient Gear Fusion Monster, using monsters from your field as Fusion Material
You can banish this card from your GY, then target 1 Crystal Skull, 1 Ashoka Pillar, and 1 Cabrera Stone in your GY
Also, if you control a Dragon-Type Monster, this card's Level becomes 7
Some monsters cannot be Special Summoned, and they can only be Normal or Flip Summoned