1 "Gaia Knight, the Force of Earth" + 1 non-Effect Synchro MonsterThis card cannot be targeted by, or destroyed by, the effects of Effect Monsters.
Gaia Drake does not have any restriction on its summoning so you can summon him with Summoner of Illusions or Cyber-Stein. The Gaia Knight, Force of Earth Material can be replaced with a fusion substitution effect.
Here are the non-Effect Synchro monsters you can use as material for Gaia Drake, the Universal Force.
Since this monster already has protection against many monster effects, Forbidden Lance can be used to make it immunity to all Spell/Trap effects for a turn.
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