Reduction of cost based on pillars is not redundant IMHO because it accelerates the speed at which the card is played, setting up for cards like Fractal that would naturally take advantage of the low cost. In addition, Life lacks a useful midhitter (like GoTP or Pufferfish) that can resist CC overall - the introduction of this card would allow Life to set up better rushes that could rely on this bring out heavier damage than Frogs if needed.
I don't play so i don't feel so concerned about this really, but i do face a bunch of them in pvp or AI. If i were to play one day, i'd rather have a way to get rid of that bloody Gravity Nymph/Fallen Elf or a way to stop that SoFo/Pulverizer from freely destroying my Druid Staff or Empathic Bonds, than extra speed. needs PC of some sort aswell, i just find it ridiculous how Dim Shield stall or sometimes Skull Buckler/Firewall/Permafrost/Diamond shield can completely shutdown any mono-life deck (part of why i wouldn't play mono-life ever).
Not saying Fae wouldn't be fun and good to have, but since not so many cards make it to the game, i wouldn't prioritize it. Just my two cents, i've said pretty much all i had to say on this topic.
Let me tell my opinion about a few things:
1) Mono-
has such quanta production and such low-cost creatures than I dare to say it is one of the least threated decks from Gravity Nymphs or Black Holes.
2) Fallen Elf isn't really powerful against mono-
. The 2 most used creatures in
are Horned Frog|Giant Frog and Cockatrice|Elite Cockatrice; these are both vanilla and upgraded have the same atk stats with Abomination, so Mutation is likely not to hurt them at all. Also, I think Mutation doesn't remove Adrenaline or Momentum from a creature, so even Adrenalined Horned Frogs usually don't have a problem by being mutated.
3) PC can be annoying, but not more than any other element. Furthermore,
creatures are often cheap enough to be playable even after a SoF destroys your Pillars/Pendulums and Emerald Shield | Jade Shield is indestrcuctible, so there are ways to withstand some PC with mono-
.
4) Shields of all kinds usually ruin a mono-
rush, so I agree this is one of the greatest weaknesses of that element.