Rellana, Twin Moon Knight

Carian Sovereignty -Whenever you cast or copy an
instant or sorcery spell, Rellana gets +1/+1 until the
end of the turn, then if this is the third time this
ability has been triggered this turn, put a double
strike and trample counter on Rellana, then if this is
the sixth time this ability has triggered this turn,
Rellana's current power and toughness, becomes
her base power and toughness.
Twin Moons -{t}: Deal damage equal to Rellana's
power to each creature, activate on