Frontline Base
Passcode: 46181000 Card Database: 5602
Spell Card
Continuous
Continuous
Once per turn: You can Special Summon 1 Level 4 or lower Union monster from your hand.
MD: Unlimited
OCG: Unlimited
TCG: Unlimited
MD
Set NameRarityRelease DateExpiry Date
Legacy PackR2022-01-19
OCG
Set NameCodeRarityRelease Date
Advent of Union302-028Common2002-07-18
Expert Edition Volume.1EE1-JP083Common2004-09-23
Structure Deck: Machiners CommandSD18-JP024Common2009-12-12
TCG
Set NameCodeRarityRelease Date
Dark Revelation Volume 1DR1-EN083Common2005-03-19
Machina Mayhem Structure DeckSDMM-EN025Common2010-02-19
Magician's ForceMFC-028Common2003-10-10
Speed Duel: Battle City BoxSBCB-EN075Common2020-11-26
Structure Deck: Seto KaibaSDKS-EN029Common2016-10-20
Special and Extra Summons
Special Summons from your hand