the only time phase recluse would outlast higher attack and HP creatures is with reverse time and that is too situational to make a solid argument out of.
Notice how I said outclass, not outlast. Also, you are missing one or two cards that can be used as CC that sometimes/always does not count in HP. Here are some of them:
Chaos Seed, Mutation, Fallen Elf, Antimatter, Butterfly Effect, Pandemonium, Purple Nymph, Basilisk Blood, Iridium Warden, Auburn Nymph, Mitosis, Freeze, Arctic Squid, Mind Flayer, Flooding, Reverse Time, Eternity, Lobotomizer, Quitessence. Oh, and Parallel Universe is
less effective against creatures with less HP.
creatures are NOT designed to die. it's just like we are not designed to fly, but we still manage it. i'm talking about how the creatures are not built with and automatic timer that kills the creature when it goes off, and the only reason they die is because of CC
While the only reason they die is because of CC, CC is a large part of the game. Thus, creatures are designed to deal/prevent damage and to sometimes die.
actually i beg to differ. in this situation it would induce almost twice the damage for an extra turn (basically 14 damage from the phase recluse against 24 from the flesh recluses). that is significant enough to cause imbalance IMO.
You're assuming that both quantum is produced only once per turn (which would mean the flesh recluse gets a turn ahead) and that you are against a fire shield (which means a flesh recluse gets another turn ahead). Both of those cases are highly unlikely. In many of the other cases the phase recluse is the better choice.
it would in no way make it imbalanced, especially in view of all of aethers multiple expensive cards. if you ask me we owe it to aether anyhow. think of it this way. average scenario is it lasts for the 2 turns on the field as i said.
You really have nothing backing this up, except the small chance that you are up against a fire shield.
now this is 14 damage you're looking at which is nearly 3 times that of a ball lightning which costs nothing. for a 1 turn card like BoL that does 15 damage i'd look to pay around 2 quanta. surely it's not too much to ask for a card that does 7 damage over 1 turn to cost 3 ? not a big deal and would not centralize or disrupt the metagame.
Once again, you are assuming they have a fire shield, which is unlikely.