|Type||Machine, Synchro, Effect|
2 or more Tuners + 1 non-Tuner monster
If this card is Synchro Summoned: You can target monsters your opponent controls and/or in their Graveyard, up to the number of Synchro Materials used for the Synchro Summon of this card; banish them. If this Synchro Summoned card is destroyed by battle or card effect: You can target 1 banished monster, except this card; Special Summon it to your field.
|Pack||Cybernetic Rebellion [UR]|
Crystrons really like to self banish and Synchro Summon. The main deck Tuner monsters focus on Special Summoning non-Tuner monsters which they immediately Synchro Summon with.
Most of the non-Tuner main deck monsters banish themselves from your graveyard to activate effects. You can then bring back these banished monsters with Crystron Rion and make Synchro plays.
Crystron Entry revives a Cystron Tuner and Special Summons a Crystron Tuner from your hand. Use this with your normal summoning of a non-Tuner monster to make Crystron Quariongandrax. Some good combinations would be Rion, Rion, level-3 non-Tuner, or Rion, Citree, level-4 non-Tuner.
When in the graveyard, Crystron Entry lets you adjusts the level of your Crystron monster helping you make the Synchro monster you want.