River Sneak 

Creature - Merfolk Warrior
No ripples, no splashes, no warning.
Power/Toughness:
1/1Artist:
Slawomir ManiakShare:
Text:
River Sneak can't be blocked.Whenever another Merfolk enters the battlefield under your control, River Sneak gets +1/+1 until end of turn.
Rulings:
No rulings found (Rulings updated 2 years ago)Legality:
- standard: Not legal
- future: Not legal
- frontier: Legal
- modern: Legal
- legacy: Legal
- pauper: Not legal
- vintage: Legal
- penny: Not legal
- commander: Legal
- 1v1: Legal
- duel: Legal
- brawl: Not legal
- oldschool: Not legal
- historic: Legal
- pioneer: Legal
- gladiator: Legal
- premodern: Not legal
- historicbrawl: Legal
- paupercommander: Not legal
- alchemy: Not legal
- explorer: Legal
- predh: Not legal
- oathbreaker: Legal