How are you getting those figures?
Realizing that it's multiplicative force can only be used when 2 or more are placed on the field, you have the minimum amount being 2 Rabbit \ Bunny.
We will first discuss Rabbit.
For 6
you would summon a 3rd Rabbit at the end of your turn, thus having 3 2|2 creatures on your side of the field. On your next turn, assuming you leave them alone and actually round properly, you would summon 1 more, bringing it up to 4/23 field positions taken on your 2nd turn, on your third turn, that would be 6/23, and on the supposed 4th turn where all field positions are taken, there would be 9 / 23 spots taken, the following turn having 13 (5th turn), the following having 19 (6th turn) and on the 7th turn having all 23/23 Rabbit on your field, this is much like Malignant Cell exponential growth, however you have to have 2 Rabbit in your hand to play this, and getting 2 Rabbit in your hand may not be rare, but not frequent. This is not to mention that an enchanted Titanium Shield renders this useless, and actually makes playing the card counterproductive.
As for Bunny...
For 6
you may very well have a bigger issue, however that's assuming you have 6 Bunny in your hand. For 2
however the same would apply with the 7th turn having Bunny using up your entire field, and thus this issue arises much faster, however, more shields can block all damage, making Bunny even more useless, and more vicious than Malignant Cell.
