The One Riddle

Create a Clue token, then scry X and gain X life,
where X is the number of clues you control. Exile
The One Riddle with three time counters on it.
Suspend 3—{1}{g}{u}
When the last time counter is removed from
The One Riddle while it's exiled, if you don't
control a legendary creature or planeswalker, sacrifice all artifacts you control.
"What are they looking for in here?"