Deep Concentration

Notes

• When hitting  Takedowns, champions who use energy as a resource restore 30 energy, increased to 60 energy for Shen.
• Deep Concentration is replaced with Triumph in champions who do not use  manna the  energy.

Strategy

• Deep Concentration is often taken in Howling Abyss as the single lane setup causes regular team clashes leading to many  takedowns, thus provoking Summoner's Rift more times than the average game.
•  Champions with a much greater dependency on having enough  mana (for example, Ryze, Kassadin, Anivia) to use their abilities have the best utilization of Deep concentration for its listed benefits.

Version history

V10.24

• Bug Fix: Now correctly regenerates resources during combat.

V10.23

• New effect:
  • Damaging an enemy champion increases your mana regeneration by 1.5 - 11 (based on level) mana per second, reduced to 80% effective for champions  remotely for 4 seconds. When activating this effect, energy users regenerate 1.5 energy per second.
  • Each filtering bag  Takedowns restores 15% of your mana max or 15% of your energy maxim.
• Antique effect:
  • Each filtering bag  champion takedowns, after a 1 second delay, restores 20% of your mana max or 20% of your energy maxim and increase mana max at 100 o energy maxim at 10, stacking up to 5 times for a maximum of 500 mana max or 50 energy maxim.

V9.24

• Bug Fix: Now correctly grants the amount of mana and energy listed in the tooltip.
• Undocumented: No longer increases the resource beyond the maximum amount if champion takedowns were taken while dead.

V9.23

• Removed: No longer refunds 10% of your ultimate's max cooldown on knockdown.
  • Replaced with Triumph on manaless or energy-based champions.
• New Effect: Now also restores 0% of your energy maxim when knocking down.
• New Effect: Now grants 100 Mana max or 10 energy maxim when knocking down, accumulating up to 5 times.
• ARAM Specific Changes: Champion Eliminations, after a 1 second delay, restore 10% of your 'Mana max o Template: Ace 10% of your energy '' 'maximum' '' and increases mana max in 50th energy maxim by 5, stacking up to 10 times for a maximum of 500 mana max or 50 energy maxim.

V8.13

• Bug Fixed: Now correctly partially refunds the cooldown of Void Momentum of Rek'Sai and Last breath of Yasuo.

V8.12

• Bug fixed: Many  Champions whose ultimate abilities use pet controls or multiple activations. (eg Talon retrieving his Shadow Assault or Riven casting Wind Slash Wind Slash) now correctly get the cooldown reduction from Deep Concentration in the  takedowns that occur while your securities are still active.

V8.10

• Bug Fixed: Now correctly reduces cooldown times for killing or assisting while dead.

V8.7

• New effect:  Takedowns restore 20% of your mana max and refund 10% of your ultimate cooldown.
• Effect Removed: You restore mana equal to 100% of mana spent for 7 seconds each time  you shoot down a  champion or level up.
• It is no longer exchanged with Triumph in the  champions without mana.

V7.24

• Duration increased to 7 seconds from 5.

V7.23

• Bug fixed:  Champions with cloning abilities no longer activate it when their clones expire.

V7.22 Added

• Runa de Slot Accuracy 1.
  • Passive: You restore mana equal to 100% of the mana spent for 5 seconds each time  knock down a  champion or level up.
  • Note that this is different from the reduced mana costs, as it still takes enough mana to cast the ability.

References

 v eRunas  v eRunas