Just some bedside random thoughts here.
There are some unviable cheap spells in this game, such as Magnetize, Mesmerize, Siphon Energy, and Eight Gates. These cards are all interesting and not “bad” IMO, they just don’t make the cut in most decks. Wasting a slot in your deck and a card from your hand for a situationally good effect is simply not good enough.
On the other hand, we have some cheap cycle spells, to name a few: Aegis Barrier, Sphere of Darkness, Scion’s First Wish, and the list of “do something and put a battle pet in your hand” spells. SoD is included in almost all Abyssian deck (assuming non-Cassy abyssian decks exist) and SFW is in all Vet decks.
Magnetize/Mesmerize/8 G8s with the cycle effect may actually be mandatory 3-offs in most decks. I’d like to see this happen, but I’m not sure about how would these cards affect the whole game, should they have the “draw a card” effect? Is it healthy for the game to implement a large number of cheap cycling spells? Slapping a “draw a card” effect on the unused cheap spells could increase their viability by a lot. However, if too much of these cycling cards exist, would they make costlier spells unviable just because those costlier spells doesn’t cycle? When too much of these cycle spells are available, will the notion of “spell” be twisted?
Anyways, discuss if you wish to.