u should concentrate more on stalling
remove sapphire chargers, animate weapon fits only on rush/control deck.
u are trying to do a deck that is normally called "500 hp deck", wich means that most of times, u will end your match with 500 hp (and this increase the final reward a lot)
check this threads about this playstyle:
http://elementscommunity.org/forum/rainbow-decks/bripod's-500hp-em-deck-mod/msg1119083/#msg1119083 and
http://elementscommunity.org/forum/deck-help/is-there-a-500hp-em-deck-against-plat/msg459612/#msg459612 the only weapon u should use is eternity with a 0 cost creature to reverse time it, so u never lose by decking out yourself
spine carapace is the best shield, poisoning means that creature can even get 3 damage/turn
steal is risky because u need only eternity and carapace, explosion fits better
u need 6 shard of gratitude with sancts, u need the heal
miracle is another must have
same for x6 protect artifact for protecting your eternity/sogs
u really want more hourglass for speeding the drawing
if u don't have sogs and miracle, try to farm more until u don't get them because helps a lot
even if in that threads the decks are upped, u can use them unupped in silver/bronze