Champion's Helm 
Artifact - Equipment
Artist:
Alan PollackShare:
Text:
Equipped creature gets +2/+2.As long as equipped creature is legendary, it has hexproof. (It can't be the target of spells or abilities your opponents control.)Equip

Rulings:
- 9/22/2011 It’s possible for a Champion’s Helm you control to be attached to a creature an opponent controls (if an opponent gains control of your equipped creature, for example). In this case, the creature couldn’t be the target of spells or abilities you control, as you are an opponent of the controller of the creature with hexproof.
Legality:
- standard: Not legal
- future: Not legal
- frontier: Not legal
- modern: Not legal
- legacy: Legal
- pauper: Not legal
- vintage: Legal
- penny: Not legal
- commander: Legal
- 1v1: Legal
- duel: Legal
- brawl: Not legal
- oldschool: Not legal
- historic: Not legal
- pioneer: Not legal
- gladiator: Not legal
- premodern: Not legal
- historicbrawl: Not legal
- paupercommander: Not legal
- alchemy: Not legal
- explorer: Not legal
- predh: Not legal
- oathbreaker: Legal
Sets:
-
Kaladesh Inventions #7 (mythic)
-
Commander 2011 #244 (rare)
-
Commander Masters #375 (rare)
-
Commander Masters Art Series #45 (common)
Other languages:
-
Champion's Helm
-
Heaume du champion
-
Helm des Champions
-
Elmo del Campione
-
Casco del campeón
-
勇者の兜