When Pia and Kiran Nalaar enters, create two 1/1 colorless Thopter artifact creature tokens with flying., Sacrifice an artifact: Pia and Kiran Nalaar deals 2 damage to any target.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)When Conclave Tribunal enters, exile target nonland permanent an opponent controls until Conclave Tribunal leaves the battlefield.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
Bretagard Stronghold enters tapped.: Add ., , Sacrifice Bretagard Stronghold: Put a +1/+1 counter on each of up to two target creatures you control. They gain vigilance and lifelink until end of turn. Activate only as a sorcery.
When you cast this spell, reveal the top X cards of your library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield. Then shuffle the rest into your library.Genesis Hydra enters with X +1/+1 counters on it.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Exile target attacking or blocking creature.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)FlyingSeraph of the Masses's power and toughness are each equal to the number of creatures you control.