Combustible Courier (Blue)

If Combustible Courier hits, the next attack you boost this combat chain gains +3 [Power].

Boost 

T-Bone (Blue)

If you control a card on the combat chain that was boosted, the defending hero must defend T-Bone with an equipment they control if able.

Boost (As an additional cost to play T-Bone, you may banish the top card of your deck. If it's a Mechanologist card, T-Bone gains go again.)

Zero to Sixty (Blue)

Boost (As an additional cost to play Zero to Sixty, you may banish the top card of your deck. If it's a Mechanologist card, Zero to Sixty gains go again.)

Zipper Hit (Blue)

Boost (As an additional cost to play Zipper Hit, you may banish the top card of your deck. If it's a Mechanologist card, Zipper Hit gains go again.)

Teklo Core

Dash Specialization (You may only have Teklo Core in your deck if your hero is Dash.)

Teklo Core enters the arena with 2 steam counters on it. When Teklo Core has no steam counters on it, destroy it.

At the beginning of your action phase, remove a steam counter from Teklo Core and gain [2 Resource].

Teklo Pounder

Teklo Pounder enters the arena with 3 steam counters on it. When Teklo Pounder has no steam counters on it, destroy it. 

Once per Turn Effect- Whenever you boost an attack action card, remove a steam counter from Teklo Pounder. If you do, the attack gains +2[Power].

Achilles Accelerator

Instant - Destroy Achilles Accelerator: Gain 1 action point. Activate this ability only if you have boosted this turn.

Arcane Barrier 1 (If your hero would be dealt arcane damage, you may pay [1 Resource] instead. If you do, prevent 1 arcane damage that source would deal.)

Crown of Providence

When you defend with Crown of Providence, you may put a card from your hand or arsenal on the bottom of your deck. If you do, draw a card.

Blade Break (When the combat chain closes, if this defended, destroy it.)

Goliath Gauntlet

Action - Destroy Goliath Gauntlet: The next attack action card with cost 2 or greater you play this turn gains +2 [Power]. Go again

Teklo Foundry Heart

Once per Turn Action - [1 Resource]: Banish the top 2 cards of your deck. Gain [1 Resource] for each Mechanologist card banished this way. Activate this ability only if you have boosted this turn. Go again

Battleworn (If you defend with Teklo Foundry Heart, put a -1 [Defense] counter on it when the combat chain closes.)

Teklo Plasma Pistol

Action - Remove a steam counter from Teklo Plasma Pistol: Attack

Action - [1 Resource]: If there are no steam counters on Telko Plasma Pistol, put a steam counter on it. Go again

Hanabi Blaster

Once per Turn Action -- Remove 2 steam counters from Hanabi Blaster: Attack
Overpower (This can't be defended by more than 1 action card.)
The third time you play a card with boost each turn, put a steam counter on Hanabi Blaster.

Viziertronic Model i

Action - Destroy Vizertronic Model i: Whenever you boost this turn, draw a card then put a card from your hand on top of your deck. Go again

Arcane Barrier 2 (If your hero would be dealt arcane damage, you may pay [2 Resource] instead. If you do, prevent 2 arcane damage that source would deal.)

Combustible Courier (Red)

High Octane (Red)

Whenever you boost a card this turn, gain 1 action point.

Draw a card.

Go again

High Speed Impact (Red)

If High Speed Impact hits, the next attack you boost this combat chain gains dominate.

Boost 

Hyper Driver

Hyper Driver enters the arena with 3 steam counters on it. When it has no steam counters, destroy it.
Once per turn, when you boost a card, remove a steam counter from Hyper Driver and gain {r}.

Jump Start (Red)

If you control a Hyper Driver, Jump Start costs {r} less to play.
Boost (As an additional cost to play this, you may banish the top card of your deck. If it's Mechanologist, this gains go again.)

Maximum Velocity

Play Maximum Velocity only if you have boosted 3 or more times this turn.

Pulsewave Harpoon

When this attacks a hero, they reveal X cards from their hand, where X is the number of times you've boosted this combat chain. Choose an action card with {d} less than or equal to X then add it to this chain link as a defending card.
Boost

T-Bone (Red)

Throttle (Red)

Boost (As an additional cost to play Throttle, you may banish the top card of your deck. If it's a Mechanologist card, Throttle gains go again.)

Zero to Sixty (Red)

Zipper Hit (Red)

Induction Chamber

Action - [1 Resource]: If there are no steam counters on Induction Chamber, put a steam counter on it. Go again

Once per Turn Attack Reaction - Remove a steam counter from Induction Chamber: Target Mechanologist pistol attack gains go again. 

Payload (Red)

If you have boosted this combat chain, Payload gains dominate. (The defending hero can't defend Payload with more than 1 card from their hand.)

Plasma Purifier

Action - [1 Resource]: If there are no steam counters on Plasma Purifier, put a steam counter on it. Go again

Once per Turn Action - Remove a steam counter from Plasma Purifier: Target Mechanologist pistol you control gains +1 [Power] until end of turn. Go again 

Reinforce the Line (Red)

Target defending attack action card gains +4[Defense].

Sink Below (Red)

You may put a card from your hand on the bottom of your deck. If you do, draw a card.

Unmovable (Red)

If Unmovable is played from arsenal, it gains +1 [Defense].

Spark of Genius

Dash Specialization (You may only have Spark of Genius in your deck if your hero is Dash.)

Search your deck for a Mechanologist item card with cost X, put it into the arena, then shuffle your deck.

If you have boosted this turn, draw a card.

Zero to Sixty (Yellow)

Zipper Hit (Yellow)

T-Bone (Yellow)

Dash, Inventor Extraordinaire

You may start the game with a Mechanologist item with cost [2 Resource] or less in the arena. (It is considered to have entered the arena.)