Picking out a Grade 0 Vanguard:
I would choose Machining Worker Ant, because the Larva Phantom Giraffa is not usable when you combine both of them. Machining Worker Ant can be useful while in the Soul, giving your deck a much better advantage than Larva Phantom Giraffa.
How are we suppose to be using Pupa Phantom Giraffa, Elite Phantom Giraffa, and Wicked Shell Phantom Giraffa?
For Elite Phantom Giraffa, to give the boost to Wicked Shell Phantom Giraffa, Elite Phantom Giraffa is needed to be in Soul, so Death Warden, Antlion is needed for Soul Charging it or ride it normally. For Pupa Phantom Giraffa's effect, you can discard Machining Stag Beetle or Death Warden, Antlion to get Wicked Shell Phantom Giraffa into your Hand. As for using Wicked Shell Phantom Giraffa's Counterblast, you can ride Machining Stag Beetle to get to Megacolony units from Soul to Rear Guard Zone to reduce the cost of Wicked Shell Phantom Giraffa, when you ride him.
Why is Death Warden, Antlion in here?
The reason is to have it Soul Charge the necessary pieces into your Soul.
Remainder of Strategy: Swarming with Machining cards, and making sure Elite Phantom Giraffa and one Machining card is in Soul.
- 12 Grade 0 Shields (10000)
- 4 Draw Triggers
- 10 Grade 1 Shields (5000)
- 4 Paralyze Madonna
- 11 Grade 2 Shields/Interceptor (5000)
Machining Worker Ant
4x Machining Hornet
4x Paralyze Madonna
3x Gloom Flyman
3x Pupa Phantom Giraffa
4x Elite Phantom Giraffa
4x Machining Mantis
3x Tail Jaw
3x Machining Stag Beetle
3x Death Warden, Antlion
2x Wicked Shell Phantom Giraffa