Griig, Timelost Troublemaker

Ward—1D4
{u/r}{x}: The next instant or sorcery you cast costs {x} less. Roll a D20. Activate only if untapped.
1-5 | Tap Griig, It becomes a random color
until your next turn
6-10 | Griig has base power and toughness
X/X until your next turn
11-15 | Griig deals 3 damage to any target.
16{dash}20 | The next spell you cast has Cascade
"Man, you old as hell"
—Agnar, of the Scarlet Eyes