Activate Ashnod's Altar by sacrificing Hallowed Spiritkeeper, adding CC.
Hallowed Spiritkeeper dies, creating at least four 1/1 Spirit creature tokens that enter with vigilance counters on them.
Activate Ashnod's Altar by sacrificing a Spirit token, adding CC.
Activate Tayam by paying 3 and removing vigilance counters from three Spirit tokens, causing yourself to mill three cards and returned Hallowed Spiritkeeper from your graveyard to the battlefield.