Nico Gaspar, the Alchemist

Whenever you cast an instant or sorcery spell,
you may pay {g}. If you do, draw a card.
Whenever a creature you control deals combat
damage to a player, you may pay {b}. If you do,
that player discards a card at random.
{t}: Add one mana of any color. Use this mana
only to cast instant or sorcery spells.
{2}{b}{g}: Create a 2/2 black and green Ooze
with trample and "Whenever this creature deals
combat damage to a player, they discard
a card at random."