Dragon of destiny, not much left to say
Its an ace in the hole because once you summon it its either win or loose so its best not to summon unless necessary or unless your sure that a terror pit or natural snare can kill your chances of a win
Strategies and game play:
I general i use a two nature deck, but since this card has no ill effects like ballom it doesnt matter what deck you use it in. Most decks with bombazar are rush decks so to have to wait till 7 mana to finish the game doesnt really happen.
Combos with other cards:
My favorite combo is with soulswap. Since bombazar takes a 7 mana to summon i prefer to put it in mana if i get it early in the game rather than keep it in hand.
Otherwise make sure you have a bunch of speed attackers when you summon it a little extra fire power never hurt. And make sure you kill off as many blockers as possible before summoning.
Ways to counteract it:
There really isnt any way to counterattack it since its never your turn after its summoned, it basically depends on your sheilds if you have a trigger well and good otherwise summon a bunch of blockers. Remember bombazar is just one creature you have to handle the entire horde that was there before him.
speed attacker and two turns to do whatever you can to win.
you loose if you cant win in two turns