my thoughts on aflatioxin are as such. alot of rainbows us two cards slots for creature generation. i feel that instead of wasting two card slots on ffq and boneyard you can just as easily substitute with two aflatioxin cards. this said you will probably have to forgo bonewall. no worries there are other shields.
reasons i like aflatioxin.
1. Exponential growth.
2. 2 cards can be used to fill both fields, one for you one for them shutting down many gods.
3. AI does not target them directly, they will only trigger mass removal effects.
4. it is really fun to completely lock down a false god.