Both are amazing spells in the few formats in which theyre legal, and you cant go wrong adding them to a deck (though I think Id give the nod to Time Walk as the better card overall)
19 Kalitas, Traitor Of Ghet Graveyard Removal And Board Presence In One While not a Zombie himself, the Vampire Kalitas, Traitor of Ghet makes for a fantastic Zombie commander for those looking to control the board by doing a little more than generating an army of Zombies
1 Reshiram & Charizard GX: Unbroken Bonds (Secret Rare) $130.35 The Top Dogs Unite Reshiram and Charizard combine on the most valuable Reshiram card ever, as this gem from Unbroken Bonds is also one of the most expensive cards in that set
General Kreat, the Boltbringer General Kreat, the Boltbringer is what happens when leadership meets chaos
In particular, abilities that let a player cast a spell without paying mana were often abused, as was the case with Aetherworks Marvel
The synergy between Tezzerets first ability and the triggered ability on the Master is probably enough to win some games, not to mention the further synergy with Metalwork Colossuss graveyard ability and Herald of Anguishs removal ability