River Sneak can't be blocked.
Whenever another Merfolk enters the battlefield under your control, River Sneak gets +1/+1 until end of turn.

• Number: 70
• Rarity: U
• Power: 1
• Toughness: 1
• Type: Creature
• Subtype: Merfolk Warrior
• Mana cost: 1U
• Color: Blue
• Artist: Slawomir Maniak