Katyusha, Master of Lolli

-2: Katyusha, Master of Lolli, Summons 7 5*5 Pravda tanks
+5: Katyusha, Master of Lolli starts singing "Katyusha" as long as she has 7 Pravda tanks when "Katyusha" is sung all tanks get +5+5
-15: Katyusha, Master of Lolli gives each tank +10+10 and creates 30 20*20 tanks that say "When ever you do damage put a +1+1 counter on each tank