digimon fusion collectible card game B1-017 Greymon LP DigiBattle Xros Wars For extra fun Mega Digimon Fusion: Here's why

Making energy attachments fast enough

MKM Murders at Karlov Manor 224 - Mythic Rare - English EN Card Name Mana Cost Type Legendary Creature Demon Rarity Mythic Rare rules Text Flying, trampleAt the beginning of your end step, target opponent may sacrifice two nonland, nontoken permanents of their choice

It goes on the stack and can be responded to, countered, and so on

To eventually stop it, Substitoad was banned, where it remains to this day

Not to be confused with Sagas that flip into creatures, which appeared in Kamigawa: Neon Dynasty, these are cards that are both enchantment sagas and creatures at the same time