Eldritch Forces/Invasion

This stage has no official name.

Eldritch Forces Invasion is a special stage that appears in ★★★★ Laboratory of Relics after clearing all Stories of Legend sub-chapters on all star difficulties, much like a Zombie Outbreak or Filibuster Invasion. Upon completion, Eldritch Forces will be back to normal and Idi:N will be unlocked. This is a No Continues like the the original, uninvaded stage Eldritch Forces, so using Cat Food to continue is not allowed.

Stage Information
Energy:	200
Enemy Base's Health:	1,500,000 HP
Enemies:	- Relic Doge (Relic) (100%) - Gory Black (Black) (300%) - Heavenly Hippoe (Angel) (400%) - Imperator Sael (Alien) (1,800%)
Enemy Boss:	- Idi:Re (Relic) (100%)
Treasure:	- Idi:N (100%, 1 time)
Misc. Information
Restriction:	No Continues Only Special and Rare
XP earned:	3,800 XP
Stage Width:	6,000
Max number of Enemies:	10
Japanese Version Information
JP Name:	Ancient Power
Script:	太古の力
Romaji:	Taiko no Chikara
Location Information
Max ★ Difficulty	1★
Sub-chapter:	Laboratory of Relics
Max Clears:	1
Difficulty:	Deadly
Prev. Stage:	N/A
Next Stage:	N/A

Restrictions

Rarity: Only Special and Rare

Battleground

• 1 Idi:Re spawns as the boss after 13.33 seconds^400f.
• Infinite Relic Doges spawn after 20 seconds^600f, delay 140~143.33 seconds^{4,200f~4,300f}.
• Infinite Gory Blacks spawn after 43.3 seconds^1,300f, delay 140~143.33 seconds^{4,200f~4,300f}.
• Infinite Heavenly Hippoes spawn after 66.67 seconds^2,000f, delay 140~143.33 seconds^{4,200f~4,300f}.
• Infinite Relic Doges spawn after 90 seconds^2,700f, delay 140~143.33 seconds^{4,200f~4,300f}.
• Infinite Gory Blacks spawn after 113.33 seconds^3,400f, delay 140~143.33 seconds^{4,200f~4,300f}.
• Infinite Heavenly Hippoes spawn after 136.67 seconds^4,100f, delay 140~143.33 seconds^{4,200f~4,300f}.
• Infinite Imperator Saels spawn after 160 seconds^4,800f, delay 80~83.33 seconds^{2,400f~2,500f}.
• When the base reaches 99% HP:
  • 3 Imperator Saels spawn after 0 seconds^0f, delay 6.67~10 seconds^200f~300f.

Strategy

Do not focus on variety: instead, bring as many combos as you can and the few cats that will allow you to win. Master Uril is strongly recommended, as any other approach that relies on tanking Idi:Re or weakening it is doomed to fail.

Strategy 1

Lineup: various basic combos (attack, worker, research, defence etc.), Cameraman Cat, Ramen Cat, Slime Cat, two more cats of your choice (at least another meatshield unless using research combos). Use the Thunderbolt Cannon. Rich cat is also highly recommenced as there are very few money sources.

Battle: start by summoning the fastest unit you have and start spamming Ramen. You should quickly have a solid line of defense, so add Cameramen too and upgrade the worker to level 3. From now on, the fight should almost be a stalemate. The enemies will push every once in a while, so you need to use Slime, by either spamming him or timing him, to allow his powerful waves to hit the enemy peons. You should also use the Thunderbolt to freeze Idi and give Slime the chance to deliver a free hit. If the last unit is Uril or talented Rodeo, use them only when Idi is in the half of the battlefield closer to the Cat Base. It may take a couple of attempts to get used to the timings, but, unless the units are under-levelled (which should be impossible, considering the requirements to reach this stage) or the last unit picked is a useless one, like Modern Cat, this stage should go down relatively easily.

Walkthrough

Video	Player	Notes
Battle Cats - Idi-N	Zerp	Ft. Legends
The Battle Cats - Vs Idi (ft. Medusa Cat)	LordBlu	Medusa Cat
The Battle Cats - Idi-Re (Eldritch Forces Invasion)	Anthony89810	No Legends
One Cycle Idi is no longer a dream.	Pan Dango	Extreme timing, ft. Capsule Cat

Gallery

• 

  Special Stage icon

Trivia

• This is the only Stories of Legend stage to feature Relic Enemies and drop Ammonites.
• This stage has a unique background.
• This is the only stage that drops a Legend Cat that has a restriction (Only Special and Rare units).
• This is the fourth stage to have a special feature in its stage select box, this having a space-like background, the first being the Zombie Outbreaks, the second being PPAP with a special font and the third being the Filibuster Invasion with a similar space themed background.

Reference

• https://battlecats-db.com/stage/s00048-ex.html