A few not-useful-at-all tips
-if u r using rainbow and ur bonewall is falling, use sundial and have ur oty to repair it by devouring critters
-if you have FFQ, boneyard, bonewall, oty and druid, eat ur spawned FFs and mutate the skeles, u get 2 addit. bone wall and one more attack for oty
-sometimes, eating non-momentumed creaures first can help bonewall to stand for a longer time...
-devour ur creatures with high attack if u want to delay the match so that u can get EM
-in pvp, never quit any games. u have a chance to win and u may learn from their decks