Planter Sage
This card is pretty good it can be used with 4 mana and has 4 strength and 5 health However it is not only the advantage that this card has .
This card has special effect which is After Life: if your an Aether, Gain 9 Favor and you will ask me how can I use this card, You can use this card to got some favors those favors can get you a card if your deck is empty.
Cards bought by favors have low mana so you can use them if you do not lock high mana gems .
Healing Light
Although this card do not have any health or strength so it can not be put in the board but it has a very good effect as it can be used to fully heal each friendly creature, and give them +1 health and also gain 4 favor.
If you look to this card with some logic, you will see that this card is so amazing as if you have for example 4 creatures in the board with low health, This can fully health them and give another +1 health to them .
Vow of Champions
Although this card do not have any strength also and any health so it can not be put in the board but it can do lots of things as it is showed below .
Best of what it can do for me is it can gain you 7 favor and this is so helpful and also draw a card as I focused on while showing you these cards on a stat where you do not have enough cards and you mana gems will be lost in the current round.
If you have any suggestions of cards with low mana and can do you a special effect that could make you the advantage in the battle, You can mention them below and we will discuss about them .