Future Trunks

Flying
When you cast Future Trunks from your hand
create a legendary artifact equipment named
"Z Sword" (Equipped creature gains +2/+0 and
First Strike. Equip {2}). Then attach it to Trunks.
Whenever you take an extra turn, you may cast
Future Trunks from your graveyard or exile until
end of turn. If you contol the Z Sword, Future
Trunks costs {1} less to cast.