This spell costs {1} less to cast if there is a card named Avert Disaster or Imminent Disaster in your graveyard.
Counter target spell.

Choose one. If you control a Weather as you cast this spell, you may choose both instead.
• Counter target spell unless its controller pays {X}.
• Return target nonland permanent with mana value X or less to its owner's hand.

Amity — Whenever you attack with Calming Celestial and exactly one other creature, Calming Celestial acclimates.
As long as you control a blue Weather, Calming Celestial has flying.

Enchant creature
When Collector's Item enters, surveil 2.
Enchanted creature loses all abilities and is a colorless Sculpture creature with base power and toughness 0/2.

{T}, Tap another untapped creature you control: You may tap or untap another target creature.
Whenever Contest Star becomes untapped, draw a card.

Flying
{1}, {T}: Draw a card, then discard a card.
Whenever one or more creatures you control deal combat damage to a player, untap Delivery Gull.

Flying
Amity — Whenever you attack with Dustwing Butterfly and exactly one other creature, create a tapped and attacking token that's a copy of target creature you control, except it's 1/1 and isn't legendary. Sacrifice that token at the beginning of the next end step.

Draw three cards.
Surface {5}{U}{U}

Once each turn, when you activate a nonmana ability, you may put a +1/+1 counter on Feeble Fish. Then if there are three or more +1/+1 counters on it, remove them all and transform it.

Ward {2}
Spells and abilities you control that target Fabulous Serpent cost {2} less.
{2}{U}: Creatures you control get +1/+1 until end of turn.

Vigilance
{T}: Surveil 1.
Surface {3}{U}

Whenever Floe Master enters or another creature you control surfaces, tap up to one target creature and put a stun counter on it.
Surface {5}{U}{U}

{T}: Add {C}. You may sacrifice Fortune Bearer. If you don't, you can't spend this mana to cast a spell from your hand.
Surface {5}{U}{U}. Fortune Bearer surfaces transformed.

Whenever Devourer of Fortunes enters or attacks, return up to one target instant or sorcery card in a graveyard or creature on the battlefield to its owner's hand. You may cast a copy of it, and may spend mana of any type to cast it.

Surveil 1, then draw a card. Exile Harbor Mail with a stamp counter on it.
When you cast a spell that has surface, if Harbor Mail is exiled with a stamp counter, you may put it into your graveyard. If you do, surveil 1, then draw a card.

Flying
When Herald of Drizzles enters, it acclimates.

Amity — This spell costs {1} less to cast if you attacked with exactly two creatures this turn.
Draw two cards.

When Kappa Colony enters, create three 1/1 green Plant creature tokens.
Whenever you cast a spell from your graveyard, put a +1/+1 counter on each Plant you control.

King of Currents can't attack unless there are six or more cards in your graveyard.
Surface {4}{U}{U}

{2}: Target creature gets +0/+3 until end of turn. Activate only as a sorcery and only once each turn.

Flying
Amity — Whenever you attack with Nimbus Dragon and exactly one other creature, tap target creature defending player controls.

Target creature you control gains hexproof until end of turn. When a nonmana ability of that creature is next activated or triggered this turn, copy it. You may choose new targets for the copy.

Amity — When you cast this spell, copy it if you attacked with exactly two creatures this turn. You may choose new targets for the copy.
Target creature gets +0/+2 and gains hexproof until end of turn.

When Primordial Seas enters and whenever you cast a spell, create a token that's a copy of another target permanent you control.

Whenever you attack, create a tapped and attacking token that's a copy of target attacking creature, except it isn't legendary. Sacrifice it at the beginning of the next end step.