It's the swarm!
Surprisingly robust defense can be achieved with this deck.
You've got a lot of land requirements so early game you are weak, like an individual, remember, trust in the swarm.
Before you play our first carassius, make sure you have 9f in total as you'll want to use auroras creation on it immediately. Then, next turn you will have a 0 cost carassius, obvs don't play it until after the ones on the board have died. If you manage to copy it three times, and play the three carassisus cards, this is how the swarm will grow:
Objective, get as many carassisus spawned, then play gift of rokoa for a otk.
--Ruunins Guidance - useful for healing or improving value in trades
--Wood elemental - extra one for defense for 3 in total, yes you actually need more water than forest but the extra taunt is quite valuable
--Gift of Rakoa - obvs
--Curious Biomancer - to draw your carassius for the deck, also draws shield mates and wood elementals
--Water Elemental - for lakes!
--Aurora, Myth maker - useful if you don't have a huge swarm but you're in a position to strike orb, play this first before the gift of rakoa for max damage
--Frogify - to deal wit seifer, otherwise it's a blood bath
--Auroras creation - copy the carassius
--Shield mates - great defence
--Recruiter - great for getting more creatures on the board for gift of rakoa
--Swarming Carassius - the swarm
--Frog Tosser - some needed beef, also adds another creature to the board for gift of rakoa
--Spirit spice - because you'll be killing off lots of carassius in your turn, basically a free buff as it will cost you 0 to play.