Jace's Phantasm

Card Name

Jace's Phantasm

Mana Cost

Type

Creature – Illusion

Rarity

Common

rules Text

FlyingJace's Phantasm gets +4/+4 as long as an opponent has ten or more cards in his or her graveyard.

Flavor Text

In the abstract memories of the Iquati, Jace found interesting ideas to improve upon.

Legal Formats

Commander, Legacy, Modern, Pauper, Vintage

Not Legal Formats

Alchemy, Brawl, Explorer, Historic, Pioneer, Standard

Rulings

(11/17/2017)
The last ability of Jace's Phantasm constantly monitors each opponent's graveyard to see if the bonus applies. If the stated condition becomes no longer true, the bonus immediately stops applying.
(11/17/2017)
If Jace's Phantasm is dealt lethal damage at the same time as an opponent's creature, and that creature will become that opponent's tenth card in their graveyard, Jace's Phantasm will be destroyed before it gets +4/+4. This is because all creatures that have been dealt lethal damage are destroyed at the same time.
(11/17/2017)
In a multiplayer game, a single opponent must have ten or more cards in their graveyard for the bonus to apply, although this opponent may change over the course of the game. You don't have to pick a single opponent; the ability will monitor each opponent's graveyard.