Whenever Karn blocks or becomes blocked, it gets -4/+4 until end of turn.
{1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.
4/4
Legalities
tlrnot legal
duellegal
brawlnot legal
pennynot legal
PreDHlegal
Rulings · 2
wotc
A noncreature permanent that turns into a creature can attack, and its {T} abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn't matter how long the permanent has been a creature.
wotc
The blocking ability triggers only once no matter how many blockers are declared.
Notes
No price observations yet — this card is in the canonical catalog but a refresh hasn't seen a market price.
