What I learnt from my draft today:
Chandra's -2 and Overrun is mean.
Jade Mage and enough mana and a lack of removal from your opponent = mean
Bloodthirsty crocodile + Trollhide against an opponent with Islands = mean
So much fun, went 3-1 in the end, lost 3rd round to a guy with every bloodthirst enabler going, Scepter, fireslinger, arsonist, tunneler and lawkeeper. 2nd game I didn't get past 2 mana.
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Thems the breaks.