Activate 1 of these effects;
• Add 1 "Catalyst Field" from your Deck to your hand.
• Add 1 "Burnout", and 1 "Chemicritter" monster, from your Deck to your hand.
You can banish this card from your GY, then target 2 face-up monsters you control, including a Gemini monster that is treated as an Effect Monster and has gained its effects; until the end of this turn, make 1 of those monster's ATK 0, and if you do, the second monster gains ATK equal to the first monster's original ATK. You can only use each effect of "Dimer Synthesis" once per turn.
NM-Mint 1st Edition - $0.10
Lightly Played 1st Edition - $0.10
Moderately Played 1st Edition - $0.10
Heavily Played 1st Edition - $0.10
Damaged 1st Edition - $0.10
NM-Mint 1st Edition Non English - $0.10
Lightly Played 1st Edition Non English - $0.10
Moderately Played 1st Edition Non English - $0.10
Heavily Played 1st Edition Non English - $0.10
Damaged 1st Edition Non English - $0.10