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'Other Merfolk creatures you control get +1/+1.
Whenever you cast a Merfolk spell, you may tap or untap target permanent.
'Create two 1/1 blue Merfolk Wizard creature tokens.
Tap four untapped Merfolk you control: Return this card from your graveyard to your hand.
'Flying Namor's power is equal to the number of Merfolk you control. Whenever you cast a noncreature spell with one or more blue mana symbols in its mana cost, create...
'Flying
This creature gets +1/+1 for each other creature you control with flying.
{2}{W}{U}: Create a 1/1 white Cat Bird creature token with flying.
'Tap another untapped Merfolk you control: Kumena can't be blocked this turn. Tap three untapped Merfolk you control: Draw a card. Tap five untapped Merfolk you control: Put a +1/+1...
As an additional cost to cast this spell, behold a Merfolk and exile it. (Exile a Merfolk you control or a Merfolk card from your hand.) Whenever this creature enters...
'Vigilance
Whenever you draw your second card each turn, put a +1/+1 counter on this creature.
'Whenever another Merfolk you control enters, put a +1/+1 counter on target Merfolk you control.
'{3}, {T}: Search your library for a Merfolk permanent card, put it onto the battlefield, then shuffle.
'Other Merfolk creatures you control get +1/+1.
Whenever you cast a Merfolk spell, you may tap or untap target permanent.
'Whenever you draw your second card each turn, create a 1/1 blue Merfolk creature token.
{U}, {T}: Target Merfolk can't be blocked this turn.