the strategy here is to summon the ultimate Blue-Eyes Chaos Max Dragon can't be destroyed by battle, can't be targeted by card effects and inflict double piercing damage to defense monster this card has enough power to beat your opponent
the strategy here is to summon Blue-Eyes White Dragon then summon Deep of Blue Eyes to trigger its effect to search for the ritual spell Chaos Form and Blue-Eyes Chaos Max Dragon in one turn.
also cards like Deep of Blue-Eyes and Melody of Awakening Dragonis going to make summoning Blue-Eyes Alternative White Dragon much much easier, this is why I choose to put 3 cards of this monster into my deck.
due to Deep of Blue-Eyes not being released in TCG and YuGiOh LOTD link Evolution I couldn't test this deck against challenging campaigns but I've build a similar deck with only one Blue-Eyes Alternative White Dragon as a difference between this deck and that and although Deep Of Blue-Eyes with also excluded it had a very high success rate against YuGiOh LOTD Challenging campaign so I assume that this deck won't be any difference.