Cas de Vega

Defender
Whenever Cas de Vega blocks or becomes blocked
by a creature, Cas de Vega deals 2 damage to that creature.
{2}{b}: Until end of turn, Cas de Vega loses defender and gains toxic 2.
{x}{x}{g}{g}: Create X green Mushroom artifact tokens with "{t}, Sacrifice this artifact: Prevent the next 1 damage that would be dealt to target creature or player this turn."