Catalyst Field

Spell

Field

Each turn, 1 Level 5 or higher Gemini monster you Normal Summon can be Summoned without Tributing. During your Main Phase, you can Normal Summon 1 Gemini monster in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) Once per turn: You can target 1 card your opponent controls; banish 1 Gemini monster you control, that is treated as an Effect Monster and has gained its effects, until your opponent's End Phase, and if you do, destroy that card.

How to Obtain

Master Pack

Scientific Analysis