CardName: "Buoyant Deppler"
Cost: 2W
Type: Creature - Octopus
Pow/Tgh: 1/3
Rules Text: Flash
When "Buoyant Deppler" enters the battlefield, choose a
color. Target creature gains aversion from that color until
end of turn. (It can’t be blocked or targeted by anything of
that color.)
Flavour Text: 
Set/Rarity: "Underwater set (color changing)" None



CardName: "Radiant Virus"
Cost: 2B
Type: Instant
Pow/Tgh: /
Rules Text: Choose a color. Creatures of the chosen color get -1/-1
until end of turn.
Flavour Text: 
Set/Rarity: "Underwater set (color changing)" Common



CardName: Deepsea Merfolk
Cost: B
Type: Creature - Skeleton Merfolk
Pow/Tgh: 1/1
Rules Text: Aversion from nonblack (This creature can't be blocked or
targeted by anything that is not black.)
Deepsea Merfolk can’t block.
Flavour Text: 
Set/Rarity: "Underwater set (color changing)" Common



CardName: Drop of Blood
Cost: 2R
Type: Instant
Pow/Tgh: /
Rules Text: Attacking creature gets +2/+0 until end of turn.
Raise the red tide. (Until end of turn, all spells and
permanents are red and all lands are Mountains in addition
to their other types.)
Flavour Text: 
Set/Rarity: "Underwater set (color changing)" Common



CardName: Singe
Cost: R
Type: Instant
Pow/Tgh: /
Rules Text: Singe deals 1 damage to target creature. That creature
becomes black until end of turn.
Flavour Text: Burnt flesh. Blackened soul.
Set/Rarity: "Underwater set (color changing)" Common



CardName: "Reclusive Tentativer"
Cost: 1G
Type: Creature - Merfolk
Pow/Tgh: 2/2
Rules Text: {3}: Target permanent becomes the color of your choice until
end of turn.
Whenever you Paint, add one mana of any color to your mana
pool.  (You paint whenever you change or add a color to a
spell or permanent.)
Flavour Text: 
Set/Rarity: "Underwater set (color changing)" Uncommon



CardName: Primordial Carnivor
Cost: 3GG
Type: Creature - Crocodile
Pow/Tgh: 5/4
Rules Text: Whenever Primordial Carnivor attacks, choose a color.
Primordial Carnivor must be blocked by a creature of that
color this turn if able.
As long as Primordial Carnivor is untapped, it has hexproof.
Flavour Text: 
Set/Rarity: "Underwater set (color changing)" Uncommon