With a typical deck size of 40 and a hand size of 5,
if you have 3 starters, the chance of drawing at least a starter is 33.76%.
With 12 starters, the chance is 85.06%.
You will brick only once in about 7 games, a decent consistency.
This is the odds if you play Centur-Ion with 3 Primera, 3 Trudea, 3 Stand Up and 3 Emblema Oath.
With 14 starters, the chance is 90.00%, ideal in my opinion.
This is the chance if you add 2 Bonfire to the Centur-Ion deck above.
The downside is that now you have 8 Normal Summons,
so 25.68% chance of having 2 Normal Summons in your starting hand.
In case of 6 Normal Summons, the chance reduces to 15.42%.