Most Flower Cardian monsters have the effect of Special Summoning themselves by tributing a Cardian monster you control. You will then get to draw a card and, if it is a Cardian monster, trigger the Special Summoned monster's second effect. For this reason Cardian decks must be almost completely composed of Cardian monsters.
Cardians are very bricky, and their high-leveled monsters have very low stats. But in exchange for raw power they offer powerful effects and support that would otherwise be broken in other archetypes. Additionally their effects do not have a "once per turn" restriction, so you are free to summon as much as you can.
Grit will be used to prevent you from dying due to a bricky starting hand because Cardians have no in-archetype way of fetching Flower Cardian Pine.
Note: We are currently testing this deck's performance.
The most important card in this deck and the first monster you always play. Not getting Flower Cardian Pine in your starting hand, or having it stolen by your opponent, is an immediate lose condition if it wasn't for Grit.
Upon Normal Summon Flower Cardian Pine lets you draw a card. This is best comboed by Flower Stacking to put the Flower Cardian monster you want to summon on top of your deck before you Normal Summon Flower Cardian Pine.
Because of its summoning condition Flower Cardian Pine with Crane can only be summoned by tributing Flower Cardian Pine. When Special Summoned, Flower Cardian Pine with Crane lets you Special Summon the Cardian monster at the top of your deck. In turn this will trigger the Special Summoned Cardian monster's effect so this one move could be quite powerful. Flower Cardian Pine with Crane lets you draw a card if it battled during the turn.
Keep in mind if you draw Flower Cardian Zebra Grass with Moon or another Flower Cardian Pine with Crane you cannot immediately Special Summon it with Flower Cardian Pine with Crane's effect because of their innate restrictions.
Flower Cardian Clover with Boar and Flower Cardian Maple with Deer can respectively destroy your opponent's monsters and Spell/Trap cards on top of the standard Cardian draw effect. Both effects combined make these monsters great for gaining advantage and controlling the field.
If you control multiple copies, you can alternately tribute and Special Summon between both monsters to clear your opponent's board.
Flower Cardian Peony with Butterfly makes synchro summoning work in a deck with almost all high-leveled monsters, this is because of its effect to treat all Synchro materials as level-2. This level adjustment easily gives you access to level-4 and level-6 Synchro monsters.
You can choose to not activate Flower Cardian Peony with Butterfly's level adjustment and simply pair it with Flower Cardian Pine or Flower Cardian Pine with Crane to make a level-7 Synchro monster.
Aside from being a great Synchro enabler, Flower Cardian Peony with Butterfly is able to change the arrangement of the top cards of your opponent's deck to put key cards at the bottom.
Flower Cardian Zebra Grass lets you extend your field because he is a no cost Special Summon as long as you control a level-7 or lower Cardian monster. Its effect is not as powerful as the other Cardian monsters but can help you get a better hand. Use him as tribute for other Cardian monsters or as Synchro material.
Flower Cardian Zebra Grass with Moon interacts with Flower Cardian Zebra Grass similar to how Flower Cardian Pine with Crane interacts with Flower Cardian Pine, because of Flower Cardian Zebra Grass with Moon's summoning condition it can only be summoned by using Flower Cardian Zebra Grass as tribute. It then acts similarly to Flower Cardian Pine with Crane with the difference of drawing a card after destroying an opponent's monster.