reading only page one here, sorry if repeting info/missed some stuff
quote someone - " 2 immortals > 1 dragon"
maybe but the single
itself doesn't actually make a difference tbh
also if there is a shield (e.g. titatnium/diamond w/e) that blocks 2, 1 dragon beats the 2 immortals as it hits 6 instead of 4, similarly the one that blocks 3, 1 dragon hits 5 but the 2 immortals hit 2 >_<
therefore always play 1 dragon over 2 immortals in any scenario where you have a choice.
on the buffing side of things, make them cost less either 4|5
or maybe even as low as 4|4
as any lower and the immortal staus OPs it but the cost is good for that
atm Immortals suck soo much just to be plain honest
another person said, AI3 and AI5 use them, gemini the FG also packs 1 or 2 immortals too