Jokulhaups
Casting Cost:
Destroy all artifacts, creatures, and lands. They can't be regenerated.
$ 000
Joiner Adept
Johnny, Combo Player
: Search your library for a card and put that card into your hand. Then shuffle your library.
Johan
At the beginning of combat on your turn, you may have Johan gain "Johan can't attack" until end of combat. If you do, attacking doesn't cause creatures you control to tap this combat if Johan is untapped.
Jin-Gitaxias, Core Augur
Flash At the beginning of your end step, draw seven cards. Each opponent's maximum hand size is reduced by seven.
Jihad
As Jihad enters the battlefield, choose a color and an opponent.
White creatures get +2/+1 as long as the chosen player controls a nontoken permanent of the chosen color.
When the chosen player controls no nontoken permanents of the chosen color, sacrifice Jihad.
Jhoira of the Ghitu
, Remove a nonland card in your hand from the game: Put four time counters on the removed card. If it doesn't have suspend, it gains suspend. (At the beginning of your upkeep, remove a time counter from that card. When the last is removed, play it without paying its mana cost. If it's a creature, it has haste.)
Jeweled Bird
Remove Jeweled Bird from your deck before playing if you're not playing for ante.
: Ante Jeweled Bird. If you do, put all other cards you own from the ante into your graveyard, then draw a card.
Jet Medallion
Black spells you cast cost less to cast.
Jester's Cap
, , Sacrifice Jester's Cap: Search target player's library for three cards and exile them. Then that player shuffles his or her library.
Jeska, Warrior Adept
First strike, haste
: Jeska, Warrior Adept deals 1 damage to target creature or player.
Jenara, Asura of War
Castig Cost:
Flying
: Put a +1/+1 counter on Jenara, Asura of War.