Play this card or its abilities only if you control a J/ruler named "Stein, Deathly Star".
[Enter] >>> Draw a card. Put two [400/400] darkness Ethereal resonator tokens into the field. They gain "At the next end of turn >>> This card's controller banishes it.".
[Seal] (X), where X is six minus the number of resonators that left the field this turn. (This card gains the following text as long as you control X or more magic stones, where X is six minus the number of resonators that left the field this turn.)
[Rest]: You may contract this card with "Stein, Deathly Star". Play this ability only during your turn.
Stein, Deathly Star
Ethereal J/resonators you control gain [+200/+200].
[Enter] This card deals 200 damage to up to X target J/resonators, where X is the number of resonators that were put into your graveyard this turn.
Whenever you play a Deathly Skill spell >>> Put a [400/400] darkness Ethereal resonator token into the field. It gains "At the next end of turn >>> This card's Controller banishes it.".
Banish an Ethereal resonator token: This card gains [Eternal] and [Barrier] until end of turn.