Ytsix, Time Warper

At the beginning of your upkeep, create a Scrap
token. (It's an artifact with "{t}, Sacrifice this
artifact: Add {c}.")
{t}, Tap three untapped artifacts you control:
Ytsix, Time Warper deals 3 damage to any target.
{t}, Tap six untapped artifacts you control, Exile
Ytsix: Take an extra turn after this one. Activate
this ability only as a sorcery.