You get Coveted Prize as a spicy tutor, Spoils of Adventure as great card draw, and Practiced Tactics for cheap removal
His abilities synchronise perfectly play vampires and get extra vampires, and, when the time is right, cast him, attack with haste, and make your whole army grow
Those cards are pretty weak in draft alone, but Tough Cookie can make them worthwhile until their self-sacrifice abilities are used.
Aether Refinery will often just be a six-mana artifact that produces two energy per turn, which isn't great value
Cycling (, Discard this card: Draw a card.) , : Put a +1/+1 counter on target artifact or creature you control
During combat, it gives another target elemental myriad, meaning that whenever it attacks, it creates a token copy that's tapped and attacking each other opponent