He seems pretty good...
Untap, upkeep
Swamp
Silumgar Butcher, exploiting my Servant.
Servant triggers, put the ctr on the Lightwalker
Butcher triggers, target the Harbinger
Attack with the Lightwalker
Responses/blocks/take it?
Spidey: 20
Hand: 9
Battlefield:
(T) Forest
(T) Plains
(T,T) Swamp x2
(U) Mt
(T) Ojutai Monument (T: Add W or U to my mana pool.; 4WU: ~ becomes a 4/4 white and blue Dragon artifact creature w/flying ueot)
(U) Territorial Roc (1/3; Flying)
(U) Face down guy (2/2)
(T) Lightwalker (3/2 from ctr; ~ has flying as long as it has a +1/+1 ctr on it) *1 +1/+1 ctr*
(S) Silumgar Butcher (3/3; Exploit; When ~ exploits a creature, target creature gets -3/-3 ueot)
Graveyard: Servant of the Scale
Exile:
===============================================================
Mooseman: 20
Hand: 10
Battlefield:
(T) Plains
(T) Swamp
(T) Mountain
(TT) Forest
Spidersilk net (A,Equip'd creature has +0/+2 and reach. Eqip 2.)
(U) Territorial Roc (1/3,Flying)
(U) Colossodon Yearling (2/4,)
(U) Face down guy (2/2)
Graveyard: Harbinger of the Hunt
Exile: