Alister

EARTH 9

If you control no face-up cards, you can Normal Summon this card without Tributing, but its original ATK becomes 1800. If this card is Normal or Special Summoned: You can reveal 3 EARTH Machine monsters from your Deck, then your opponent randomly adds 1 of them to your hand, and you shuffle the rest back into your Deck. You can only use this effect of "Machina Metalcruncher" once per turn.

DARK 8

Cannot declare an attack unless you banish 1 card from your GY. If exactly 3 of your cards are banished: You can Special Summon this card from your hand. You can only use this effect of "D.D. Assault Carrier" once per turn.

Trap Normal

Target 1 Machine monster you control; Special Summon 1 "Machina" monster with a different name from your hand or Deck, and if you do, destroy that targeted monster. You can banish this card from your GY, then target 3 of your Machine monsters that are banished and/or in your GY; shuffle them into your Deck, then draw 1 card. You can only use 1 "Machina Overdrive" effect per turn, and only once that turn.