Taysir the Dervish

Taysir's power and toughness are equal to X,
where X is the number of Taysir you control.
Taysir and his activated ability costs {1}
less for each other colored Taysir in play.
{4},{t}: you and up to X permanents you control
gain hexproof and indestructible until end of
turn, then untap up to X permanents.
Partner with Taysirs of different colors.