Empress Teta, Deep Core Gate

While you control this Planet card, Being cards
you control have Alert.
{1}{r}: Create a Carbonite Slab Tech token with
"{t}, Sacrifice this token: Tap one Being card on
the opponent's field. That card does not untap
during the opponent's next untap phase."
If you control a Krath Being, Forceful Being, or
Droid card, it gains +2/+1 whenever it attacks.