mtg xx cards Biomass Mutation | Gatecrash | Modern Barad-dur card: two X X

Serious Storage for Serious Decks

Next up is a spoiler from German website GameZoom.net, Disappearing Trick (credit for translation goes to reddit user PraiseTheKappa)

Adding Threats On the flip side, you can also use your sideboard to find a new threat that your opponent will struggle with

*Buy Cheshire Cat Inexplicable cards on eBay and TCGPlayer Grandmother Willow Ancient Advisor 13/204 Winterspell, Uncommon A two-cost Amber mentor that shows up as a four of in Amber Evasive and aggro builds alike

What really happens is that when the clone's first ability triggers and resolves, it immediately triggers again