Hardened Scales 
Enchantment
"Naga shed their scales. We wear ours with pride." —Golran, dragonscale captain
Artist:
Mark WintersShare:
Text:
If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on it instead.
Rulings:
- 9/20/2014 “Put on a creature you control” includes that creature entering the battlefield with +1/+1 counters on it. If a creature would enter the battlefield with a number of +1/+1 counters on it while you control Hardened Scales, it enters with that many counters plus one.
- 9/20/2014 Each additional Hardened Scales you control will increase the number of +1/+1 counters placed on a creature by one.
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