Most underrated COMMON cards ?

I played 1 week in Splinterlands mostly using common cards and saw that much players at least at bronze dont use most effective common cards. I make my top5

1. Frost lion

in magic matchups with low manapool its gamechange card
Example:

one card difference gives me 1 extra hit

so before round3 start my Oshanus have enough hp to not die in next round

#2. Crustacean king

healing gives extremely much in low manapool games

also very close matchup but crab always win :

#3. Venari crystalsmith

Have no actual match history but it also card gamechanger , trust me :)
#4. FAILED SUMMONER

also have no actual handhistory but it always kill opponent ice pixie, if he prefer magic lineups. Must have in low manapool games
#5. WOOD NYMPH

not cheap but still common card, allows to win many close matchups. I still have no this card, but i aim to get it soon

Will play and discover more game tricks.
What is your top5 common cards?
I would be glad to hear your opinion