Karmic Guide + Reveillark + sac outlet = infinite sacrifices and ETB's for any creature with power less than 2 Helm of Obedience + Rest in Peace = (1,t: Exile target opponent's library) Angelic Renewal + Sun Titan + sac outlet = infinite sacrifices Enduring Renewal + Ornithopter + sac outlet = infinite sacrifices Outrider en-Kor/Lightning Greaves/Shuko + Task Force + Worthy Cause/Animal Boneyard/Miren, the Moaning Well = infinite life Cryptic Gateway + Stormfront Riders + one other soldier creature = infinite tapped 1/1 Soldiers Adarkar Valkyrie + Thornbite Staff + another creature + sac outlet = infinite sacrifices Auriok Salvagers + Lion's Eye Diamond = infinite mana and get back any artifact with CMC 1 or less infinite times And after this, I'm out
Unwinding Clock also lets you untap your mana rocks so you can have mana for counterspells when your opponents' turns are happening
While the card got horribly pricey as a result, a reprint in Innistrad Remastered has made him a little less silly to buy
A single Reckless Rage can answer Nissa or The Wandering Minstrel on the cheap, which doesnt help the situation
He also comes with a very interesting ability that gives you the option to trash a life to prevent him from being removed from the field once per turn
Allies can attack opposing heroes or allies, but can also be attacked