Try to keep Kresh alive by various means.
• Indestructible adders
• Regenerate adders
• Hexproof adders
• I threw in some damage prevention for myself (Platinum Angel, Platinum Emperion, Elderscale Wurm, etc.) in there, as these can take advantage of the above adders.
• Creatures that wrath or deal damage to each creature (to make Kresh bigger); This isn't all that important because things usually die anyway.
Click here for a text version of this decklist
Click here for my EDH Commander decks