I don't have enough time, but someone could count the "4 Shards + Chimera"-needed FGs and the "TU + Chimera" FGs. Notice that TU FGs are:
.Those who have a dragon or high attack creature (don't know exactly the min att it must have, is just (200 - 26*7)/2 )
. they must not have any healing stuff, because the early TU would be obsolet.
. Every FG must have an "expexted turns it kills the TUed dragon" variable to the minimum.
This way, we can see if the 4 shard deck is more needed than TU one.
Noo, I do not mean that TU'ing the opponent's dragon before you can use the combo. I mean right at the end when you have almost all cards of the combo, but for some reason cannot summon the dragon to clear your hand. You might have 7 cards of the combo (1 card left, bottom decked Silurian dragon) + an extra hourglasses and only 12
. Thus you cannot cast the hourglass to clear your hand or else you won't have enough
to summon the dragon. When this happened to me against incarnate, I just TU his bone dragon, which cleared 1 space. Now I can draw from my sundial to get the siluarian drag. Mitosis + SOR as normal, kill the god. With the 4 shard version, that game would have resulted in a loss. There are plenty of other situations, almost all to do with hand clogging, that would benefit from a TU.
The TU + 3 shard version can deal exactly 200 damage if the opponent has a 1 damage absorbing shield, since it has 8 dragons each dealing 26 dmg. So you don't need a chimera if the god has a 1 dmg shield, but TU is not recommended unless on a min 13 attack drag.
The minimum attack of an airborne creature needed to be suitable for TU (with chimera) needed for it to work with the combo is 9. ( (200 dmg - 7*26)/2 ) = 9. If a creature has 18 or more attack but is not airbourne, you can TU that as well.
I ddin't count, but from my experience, some TU + Chimera gods that that have strong suitable creatures for TU are Elidnis, Neptune, Seism and Incarnate. Incarnate has bone dragon, Elidnis had Jade drag, Seism has basalt drag and Neptune has artic drag. Note that Incarnate also requires chimera for the 4-shard version, so incarnate is easier to beat with the 3 shard + TU.
Akebono is also suitable, since it has overdriven massive dragon, but you need to wait 1 turn for it's attack to rise from 8 to 11.
And its just in my experience the 4 shard works better for me, I didn't test anything, just noticed that I started winning more games than I lost. Probably needs more investigation to figure out if that is really the case.