D20

{1}{t}:Roll a D20. If you roll a 15-20, draw two cards.
{5}{t}:Roll a D20. If you roll a 13-20, put two +1/+1 counters on target creature.
{x}{x}{t}:Deal X damage to target player or plansewalker. Roll a D20. If you roll a 20, double that damage
{t}:Add {w},{u},{b},{r}, or {g}