Swift Slender

Fusion (When this creature enters the battlefield, exile any number of other creatures you control with fusion. This creature gets +X +Y where X is the combined power and Y is the combined toughness of those creatures. This creature gains all abilities of the exiled creatures. Attach all auras and equipments you own attached to the exiled creatures to this creature.)
{r}{r}: Swift Slender gains haste until end of turn.