Pocket Potion Kit

At the beginning of your upkeep, you may pay {1}. If you do, create a colourless Potion artifact token with "Sacrifice this artifact: target creature gains/gets X until end of turn."
X depends on the colour of mana spent:
{c}: Indestructible {w}: Lifelink {u}: Flying
{b}: Deathtouch {r}: Haste {g}: +2/+2