Uninvited Geist
mtgCard

Card Name

Uninvited Geist

Mana Cost

2

Type

Creature – Spirit

Rarity

Uncommon

rules Text

Skulk (This creature can't be blocked by creatures with greater power.)When Uninvited Geist deals combat damage to a player, transform it.

Flavor Text

A slow knock at midnight is best left unanswered.

Legal Formats

Commander, Legacy, Modern, Pioneer, Vintage

Not Legal Formats

Alchemy, Brawl, Explorer, Historic, Pauper, Standard

Rulings

(4/8/2016)
Skulk matters only as blockers are chosen. Modifying either creature's power after blockers are chosen won't cause the attacking creature to become unblocked.
(4/8/2016)
If you cause a creature to have 0 power or less, use the actual value (which may be negative) to determine whether it can block or be blocked. A creature with skulk and 0 or less power most likely won't be blocked, but it won't deal combat damage and won't trigger any abilities that trigger when combat damage is dealt.