Assuming you're going to farm AI3, I'd go with the basic -
Take out the BH. There's only one rainbow guy. Not worth it.
Take out 1 titan. Seriously, you'll only ever need 1.
To slim it down to 30 cards, you'll need to take 2 more cards out. 1 gravity shield and one Otyugh could do it.
You can, however, take an alternate route and proceed by taking out some more "core strategy things". These are all matter of preferences. I'd personally do the next method :
(Back at the 32 cards with -1 Titan -1BH)
I would:
Take out 3 Colossal Dragons, 1 Gravity Shield, and 1 Momentum.
The reason to this is that you're going to replace them with Armagios. They're cheaper (5 quanta), can provide a meatwall (25 HP and GPull skill), and are great acceleration tactics. You can do it with 3 Magios.
Your deck will then have Sapphires, Armagios, 2 Gravity Shields, 2 Momentums, 2 Otyugh, 1 Titan, 2 Accelerations, and filled with a pendulum / pillar division. You may choose to keep the otyughs for annoying creatures, but I'd generally take them out (Both otyughs, together with lasting 2 Gravity Shields) for 2 Pillars and 1 more momentum + accel (Thus leaving you with 3 Momentums, 3 Accels, and 3 Armagios - A buff to buff ratio.) That's, however, a matter of preference. I just prefer attack over the slightest of defenses.
