Nylea's Colossus

Treasure Chest (PZ2) #70655 · Rare · Enchantment Creature — Giant

Mana cost: {6}{G}

Constellation — Whenever this creature or another enchantment you control enters, double target creature's power and toughness until end of turn.

"Those who seek my protection receive it."
—Nylea, god of the hunt

Power/toughness 6/6 · Illustrated by Grzegorz Rutkowski · Released December 6, 2018

Printings

2018-07-13 · wotc — If an effect instructs you to “double” a creature’s power, that creature gets +X/+0, where X is its power as that effect begins to apply. Toughness is doubled similarly.
2018-07-13 · wotc — If a creature’s power is less than 0 when it’s doubled, instead that creature gets -X/-0, where X is how much less than 0 its power is. For example, if an effect has given Nylea’s Colossus -8/-0 so that it’s a -2/6 creature, doubling its power and toughness gives it -2/+6, and it will become a -4/12 until end of turn.