thanos, destroyer of worlds

{w}(Mind stone)all opponents play open hand until Thanos dies
{g}(Time stone)take a extra attack phase
{u}(Space stone)return a creature to its owners hand
{b}(Power stone)a creature gets four -1/-1 tokens
{r}(Reality stone)Your creatures gain flying
{c}(Soul stone)return a creature from your graveyard to your hand
These abilities can only be used if Thanos has the infinity gauntlet equipped to it