Guard of Valhalla

At the beginning of your upkeep, choose a color.
• If the color is white, it gains indestructible until
end of turn.
•If the color is blue, it gains hexproof until end
of turn.
•If the color is black, it gains deathtouch until
end of turn.
{bull}If the color is red, it gets +3/+1 until end of turn.
{bull}If the color is green, it gains trample
until end of turn.