Forest

Ward + summon, decent for bronze.

This buff simply saves me.

Cool kitty, has managed to prove itself.
Sword

One of my favorite cards in the game.

Also good, especially if the enemies are zerg-rushing.

Summons two decent followers.
Runes

When this hits the board with +50/+50, the enemy can only pray for a death dance or some similar crap.

Has proven itself well, especially if there's something to evolve into.

Summons guys with wards, how can you resist that x)
Dragon

Small thing, but pleasant.

Already wrote about this one, perfect with an enhance.

The main thing is that it can be evolved.
Shadow

Must-have.

Very annoying thing.

Another one of my favorite cards in the game.
Blood

Very annoying card, especially against various sword-crafts and forest-crafts.

Crafted it and didn't regret it, cool thing.

Situational and sometimes suicidal, but it's a cutie.
Holy

Must-have.

Summons an excellent guy with a ward.

Another annoying thing.
Neutral

Must-have.

Three evolve points aren't always a panacea, but they'll definitely make you nervous.

Decent lad, though it doesn't always make sense to evolve him.
And yeah, I'm a noob, maybe my opinion will change over time, and not all favorite cards fit in; actually, I love way more cards and so on.
🏹🎪+⛓️♿=💕