CardName: Downcurrent
Cost:
Type: Aquatic Land
Pow/Tgh: /
Rules Text: Downcurrent enters the battlefield tapped.
{T}: Add {C}. If this mana is sent on an Aquatic instant or
sorcery, that spell gains "Tap target creature. That
creature doesn't untap during its controller's next untap
step."
Flavour Text:
Set/Rarity: temporary storage None
Downcurrent
Aquatic Land
Downcurrent enters the battlefield tapped.
: Add . If this mana is sent on an Aquatic instant or sorcery, that spell gains "Tap target creature. That creature doesn't untap during its controller's next untap step."
: Add 
. If this mana is sent on an Aquatic instant or sorcery, that spell gains "Tap target creature. That creature doesn't untap during its controller's next untap step."
See Updraft. Originally this just tapped the creature, but I feared that was too weak in comparison to its counterpart.