Multi colour

[Mattao19]

{Ancient Grudge} {Wear//Tear}

Can I {Glitering Wish} for either of these?

Say I give my artifact pro Green does it still die to AG?

[Kaylesh]

{Ancient Grudge} {Wear//Tear}

Can I {Glitering Wish} for either of these?

Say I give my artifact pro Green does it still die to AG?

105.2.: An object can be one or more of the five colors, or it can be no color at all. An object is the color or colors of the mana symbols in its mana cost, regardless of the color of its frame. An object's color or colors may also be defined by a color indicator or a characteristic-defining ability. See rule 202.2.

105.2b: A multicolored object is two or more of the five colors.

708.3.: Each split card that consists of two halves with different colored mana symbols in their mana costs is a multicolored card while it's not a spell on the stack. While it's a spell on the stack, it's only the color or colors of the half or halves being cast.

In other words: {ancient grudge} is a mono-colored, Red, card, even if you cast it from your graveyard.

{wear//tear} is multicolored when outside the game, so it can be wished for.