Jace, Cunning Castaway [San Diego Comic-Con 2018] 141 you can substitute this card

you can substitute this card for any 1 "Synchron" Tuner monster

you can destroy 1 Set Spell or Trap Card on your opponent''s side of the field

You can Tribute Summon this card by Tributing 1 monster

−3: Exile target permanent

Jace, Cunning Castaway [San Diego Comic-Con 2018] 141 you can substitute this cardSet: San Diego Comic Con 2018 Type: Legendary Planeswalker Jace Rarity: Mythic Cost: {1}{U}{U} +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 creature becomes the target of a spell, sacrifice it." 5: Create two tokens that are copies of Jace, Cunning Castaway, except they're not legendary.