During your opponent's Main Phase or Battle Phase: You can target 1 non-Tuner monster in your Graveyard; Special Summon it, but it has its effects negated (if any), and if you do, immediately after this effect resolves, Synchro Summon 1 Machine-Type Synchro Monster using only that monster and this card (this is a Quick Effect). These Synchro Materials are banished instead of being sent to the Graveyard. You can only use this effect of "Crystron Citree" once per turn.
The revived monster must immediately be used as Synchro Material.
Can only summon Machine-type Synchro monsters with effect.
You can revive any non-Tuner from your graveyard with Crystron Citree’s effect. This is under the condition that you have a monster in your extra deck that can be made with Crystron Citree and selected non-Tuner.
Here are some other Crystron monsters you can use in a Crystron deck with Crystron Citree. Non-Tuner Crystron monsters can easily load your graveyard by destroying their costs, giving Crystron Citree lots of revival options while simultaneously Special Summoning her from your deck.
Crystron Rion can be used to recover the banished non-Tuner monster you used with Crystron Citree while also making another Synchro monster.
Machine-Type Synchro Monsters
Here are the Machine-type Synchro monsters you can make with Crystron Citree’s effect. Crystron Ametrix is a good target because she changes the position of all your opponent’s monsters upon summoning, doing this during your opponent’s turn makes it better.
Special Summons from your Graveyard / Special Summons from your Extra Deck / Synchro Summon with card effect
Hey guys, does anyone know whether I can use the first effect only (summon from graveyard)? Or do I have to have a suitable synchro monster in extra deck and summon that afterwards?
Thanks for your advice.