The Spell however, is not searchable except by Terraforming.
Krystal Potential Field Spell Card (1) All “Crystron” monsters you control gain 300 ATK and DEF. (2) Once per turn, during the End Phase: You can draw 1 card for each “Crystron” Synchro Monster you Synchro Summoned during this turn.
Crystron Entry Normal Trap Card You can only use the (2) effect of “Crystron Entry” once per turn. (1) Special Summon 2 “Crystron” Tuner monsters (1 from your hand and 1 from your Graveyard). (2) During either player’s turn, except during the turn this card was sent to the Graveyard: You can banish this card from your Graveyard, then target 1 “Crystron” monster you control; send 1 “Crystron” monster with a different Level than that monster from your Deck to the Graveyard, and if you do, the Level of the target monster becomes the same as the Level of the monster in the Graveyard.