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BTDB2
Regularly sets a carpet of spikes over the whole track.
~ BTDB2 description
Carpet of spikes big mouth

Carpet of Spikes opening its flaps

Carpet of Spikes is the 5th upgrade of Path 2 for the Spike Factory. It produces a 'carpet of spikes' on the track every 15 seconds that lasts longer than the spike storm from its previous upgrade, lasting 20 seconds instead of 10 (30 seconds instead of 15 with 0-5-1). The ability spikes deal 6 damage and +8 MOAB-class damage, more than that from MOAB SHREDR. Main spikes deal 3 damage and +4 MOAB-class damage and are still produced every 0.49s, double speed compared to Even Faster Production. All spikes still have 5 pierce, or 10 with 1-5-0 crosspath.

Carpet of Spikes' ability has similar principles to the Spike Storm upgrade, but for the activated ability and passive abilities. Both abilities lack initial cooldowns, and they can be affected by attack speed buffs, much like BTD6 pre-27.0 Carpet of Spikes. However, as a measure to eliminate empowerment with pierce buff synergies (notably Call To Arms and Homeland Defense) while still synergizing with attack speed buffs such as Monkey Boost, neither ability can be affected by pierce buffs, instead of attack speed buffs.

It costs $40,000, and is unlocked with a one-off purchase of Monkey Money1500 for all Tier 5 Spike Factory upgrades.

Strategy[]

Summary[]

Carpet of Spikes has a lot of widespread damage and focuses a lot of damage on a single tower. As a result, it is very strong at inflicting high widespread damage. Similarly to Spike Storm, Carpet of Spikes has a high synergy with attack speed buffs, creating many more spikes per activation. This is especially the case when paired with Overclock, which can affect Carpet of Spikes' abilities.

Tips[]

  • 2-5-0 is generally better than 0-5-2 in almost all situations. Alternating lanes in BTDB2 are rarely used, making 0-5-2 almost redundant. 0-5-2's ability does get affected by start-of-round benefit, but it's very time-sensitive and hence situational, and doesn't even take advantage of its optimal DPS nor has any value versus DDTs unless given MIB or similar.

Version History[]

Initial release (compared to BTD6 during Version 28.0)
  • BUFF Carpet of Spikes activated ability now has no initial cooldown.
  • BUFF Carpet of Spikes abilities can gain increased rate of production via attack speed buffs
1.0.4
  • NERF Carpet of Spikes abilities no longer affected by external pierce buffs
  • NERF Base spike lifespan decreased (50s → 40s)
1.0.6
  • BUFF Carpet of Spikes ability damage increased (3 → 6, bonus MOAB damage +4 → +8)
1.1.0
  • BUFF XP requirements 35k → 17.5k
1.5.0
  • BUFF No longer requires 17,500 XP to unlock. Players who have unlocked this upgrade before the update will not receive a full refund, as well as unlock all Tier 5 Spike Factory upgrades.
4.2
  • BUFF Carpet of Spikes: Attack rate 0.98s -> 0.49s
Carpet of Spikes’ base attack has been buffed so that there is more reason to keep it up, rather than selling it instantly after activating the ability.
~ Ninja Kiwi
4.2.1 OTA Update 2
  • NERF Affected by MOAB SHREDR damage nerf to Bonnie's B.E.A.S.T.
As we describe in Bonnie’s balance changes, the BEAST is proving to be much easier to pop than we anticipated. The Spike Factory is the worst offender for this and the Spike Storm ability is guaranteed to instantly vaporise the BEAST. We prefer not to add special exceptions to the rules but in this case we feel that it’s warranted as trying to nerf the Spike Factory so that it does a fair amount of damage to the BEAST would make it unfairly weaker against everything else.
~ Ninja Kiwi

Gallery[]

Trivia[]

  • When not taking into account damage buffs, Carpet of Spikes spikes deal double damage in this game compared to its BTD6 counterpart prior to Version 31.0.
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