San Diego Comic-Con 2018

[+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."

[+1]: Whenever one or more creatures you control deal combat damage to a player this turn, draw a card, then discard a card. [−2]: Create a 2/2 blue Illusion creature token with "When this token becomes the target of a spell, sacrifice it." [−5]: Create two tokens that are copies of Jace, except they're not legendary.

[+1]: Mill three cards. If at least one Zombie card is milled this way, each opponent loses 2 life and you gain 2 life. [−2]: Target creature gets -X/-X until end of turn, where X is the number of Zombies you control. [−3]: You may cast Zombie spells from your graveyard this turn.

[+1]: Exile the top card of your library. You may cast that card. If you don't, Chandra deals 2 damage to each opponent. [+1]: Add {R}{R}. [−3]: Chandra deals 4 damage to target creature. [−7]: You get an emblem with "Whenever you cast a spell, this emblem deals 5 damage to any target."

[+1]: Untap target land you control. Until your next turn, it becomes a 5/5 Elemental creature with haste. It's still a land. [−3]: Return target permanent card from your graveyard to your hand. [−6]: You get an emblem with "Whenever a land you control enters, you may draw a card."