Dainty Ankles Staircase

Dainty Ankle Staircase enters the battlefield tapped
{t} Add any one color mana you would like.

Upon tapping everyone takes a stroll down Dainty Ankle Staircase and trips. Each player rolls a D10 to determine the direct damage they will be taking. This ability can only be used once.

{5},{t} Sacrafice Dainty Ankle Staircase and each player takes max 10 direct damage

"These stairs are definitely up to something"