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Gideon of the Trials
Legendary Planeswalker — Gideon
+1: Until your next turn, prevent all damage target permanent would deal.
0: Until end of turn, Gideon becomes a 4/4 Human Soldier creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn.
0: You get an emblem with "As long as you control a Gideon planeswalker, you can't lose the game and your opponents can't win the game."
Rulings (9)
If you have Gideon's emblem in a Two-Headed Giant game and control a Gideon planeswalker, your team can't lose the game and the opposing team can't win the game. If your teammate controls a Gideon planeswalker but you do not, your emblem's effect doesn't apply.
Apr 18, 2017
Gideon's second ability doesn't count as a creature entering the battlefield. Gideon was already on the battlefield; he only changed his types.
Apr 18, 2017
If Gideon leaves the battlefield after giving you his emblem, you'll keep the emblem. Its effect will apply again later if another Gideon comes under your control.
Apr 18, 2017
Legality
Formats by platform
Commander
Competitive
Digital
Community & retro
Printings (6)
AKR#19—
Amonkhet Remastered
PRM#70940—
Magic Online Promos