Riverfang Troubadour

Other Hyenas you control get +1/+1 and have
haste.
Metalcraft—If you control three or more
artifacts, other Hyenas you control instead get
+2/+2 and have haste and menace.
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"It's grating to the ears, but I must admit there's a
certain talent to his music."
—Esh, Riverfang Matriarch