Splinterlands - Rent Lurking Puffer with 16 DEC

I have got a new card which is a card that I need in my battles as I have played a battle with low mana with a rule Maneuvers as All units have Reach (can use melee attacks from the second position) and it was with high mana and I did well in it but I was thinking about battles with low mana what should I do.

I went to the market to get a card that I can use with low mana and this one was one of the lowest card for mana usage as it could be used with 2 mana only and it has a very good ability.

Lurking Puffer is fungoid and this one has not attack as it do not has any range, melee or magic attack but it has Corrosive ward ability as -2 to attacker armor and maximum armor when hit by a melee attack with 1 speed and good health as it has 5 Hearts.

So when I have a low mana battle then I could use this card as it would help in getting rid of enemies armors and in this case I could hit with my first line units that has melee or range attack.