Forever'is Forest Keep

Hexproof, Indestructible and Defender
Whenever you cast an artifact spell put a +0/+1 on this creature
Artifacts cost {x} less to cast where {x} is the creatures toughness

{r}{b}{u}{t} Create a Sol Ring artifact token with "{t} add {c}{c}"

{g}{w}{t} sacrifice this creature gain 5 life