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From $5.50
'Flash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.
From $4.00
'Flash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.
From $7.75
'Flash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.
$0.25
'Kicker {1}{R} and/or {1}{G} This creature enters with two +1/+1 counters on it for each time it was kicked. When this creature enters, gain control of target creature with power...
$0.25
'Kicker {1}{R} and/or {1}{G} This creature enters with two +1/+1 counters on it for each time it was kicked. When this creature enters, gain control of target creature with power...
From $3.25
'Whenever you draw a card, put a +1/+1 counter on each other Merfolk and/or Knight you control.
'Flash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.
'Flash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.
'Flash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.
'Flash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.
'{T}: Add {C}. Spend this mana only to cast an instant or sorcery spell.
Merfolk: Death will rise from the tides // hold my flippers to the skies Modern Horizons left many Modern decks out to dry several years ago, and Merfolk is...