Flash Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, draw a card.
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Draw two cards.
Other Merfolk creatures you control get +1/+1. Whenever you cast a Merfolk spell, you may tap or untap target permanent.
Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
Whenever another Goblin you control becomes blocked, sacrifice it. If you do, it deals 4 damage to each creature blocking it. Sacrifice two Mountains: Create two 1/1 red Goblin creature tokens.
{T}: Add {C}. {2}, {T}: Put a +1/+1 counter on target Bird, Cat, Dog, Goat, Ox, or Snake.
Clifftop Retreat enters tapped unless you control a Mountain or a Plains. {T}: Add {R} or {W}.
End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.
Haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
+2: Chandra, Pyrogenius deals 2 damage to each opponent. −3: Chandra, Pyrogenius deals 4 damage to target creature. −10: Chandra, Pyrogenius deals 6 damage to target player or planeswalker and each creature that player or that planeswalker’s controller controls.
Destroy target creature. A creature destroyed this way can’t be regenerated. Overload {2}{W}{W} (You may cast this spell for its overload cost. If you do, change “target” in its text to “each.”)
Choose any number of target creature and/or planeswalker cards in graveyards. Command the Dreadhorde deals damage to you equal to the total mana value of those cards. Put them onto the battlefield under your control.
Geralf’s Messenger enters tapped. When Geralf’s Messenger enters, target opponent loses 2 life. Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner’s control with a +1/+1 counter on it.)