Put target permanent an opponent controls on top of its owner's library. That opponent may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.
Flying {X}{U}: You may put a creature card with mana value X from your hand onto the battlefield. If you do, return Metathran Aerostat to its owner's hand.
When a spell or ability an opponent controls causes you to discard Metrognome, create four 1/1 colorless Gnome artifact creature tokens. {4}, {T}: Create a 1/1 colorless Gnome artifact creature token.
Choose one — • Midnight Charm deals 1 damage to target creature and you gain 1 life. • Target creature gains first strike until end of turn. • Tap target creature.
At the beginning of your upkeep, you may put a verse counter on Midsummer Revel. {G}, Sacrifice Midsummer Revel: Create X 3/3 green Beast creature tokens, where X is the number of verse counters on Midsummer Revel.
Replicate {3}{U} Choose target permanent an opponent controls. Search that player's library for a card with the same name and put it onto the battlefield under your control. Then that player shuffles.
As an additional cost to cast this spell, sacrifice a creature. Target player reveals their hand and discards all cards of each of the sacrificed creature's colors.