1 card that does 7 dmg
2 cards that do 4 dmg each
here is the reason for why 1 is better than 2
you actually need to have both of the minor phoenixes in your hand to do the 1 more damage that they do.
quanta costs in this deck dont matter because cremation adds 9 fire.
if you draw 2 destroyers, 2 cremations, 1 phoenix, 1 ball lightning, 1 precog, you cremate the BL for the phoenix, cremate the phoenix, play the 2 destroyers and use the precog. now doing the same thing with minor phoenix yields the exact same results, but on the following turn, youre doing more dmg with just the cards in play, and the next cards to be drawn are irrelevant
1. Important note: I will try the unupped variant first, for sure, as you know your deck best, so you are probably right.
2. For your example, you use a probably common, but well usable starting hand...the bad starting hand i had i mind was only 1 cremation, 2 phoenix, 2 destroyer, 1 BL, 1 precog
cremate BL...and THEN there is a major difference, imho...assuming to dont draw cremation with precog, of course
a) with unupped phoenix you have the choice: either destroyer or phoenix...i would probably choose phoenix to play next cremation on him and also for him to draw CC...assuming you choose this:
1st turn 7 dam
2nd turn 7 dam (either phoenix or destroyer, if you draw 2nd cremation) = 14
3rd turn 7+9 plus anything else that might come now = 30
b) with upped phoenix you play both phoenix AND destroyer first turn (exactly 9 fire)
1st turn 4+4+7 dam = 15
2nd turn 4+4+9 dam (with another cremation you could play another creture, if you drew one^^)= 32dam
3rd turn 4+4+9 plus everything else that might come =49 dam
Thats why i argued "unupped phoenix is only good when you can play him"...last note about this: the variant b) has one major weakness, that you already pointed out more than once: it uses one card more...so you have better chances to draw another usable creature/cremation, so dam might be even better with variant a) after 5 turns, as you will probably have another heavy hitter on the tabel...but predicting 5 turns for a deck i never played feels like playing the oracle...one day i will simply try to put this deck together and test ttw for both variants...