Sana, alongside the rest of Council + Promise and HoloMyth, is one of the 11 characters introduced in Version 0.3 - the first public version of the game.
Speaker Of Space is only affected by "all area" bonuses, which are currently only granted by Knightly Milk and Speaker Of Space itself; other area bonuses such as size increase via enchanting or from weapon upgrades do not grant bonus damage. Size Up Stamp does not grant bonus damage, either.
Area bonus stacks additively with the bonus from Knightly Milk.
The weapons and skills affected by the area bonus are the same as with Knightly Milk.
Astrology
Level 1
Every 15 seconds, gain a 15 second 30% buff to either ATK, SPD, Crit, Pick Up Range, or Haste, or heal for 30% HP.
Level 2
Every 15 seconds, gain a 15 second 40% buff to either ATK, SPD, Crit, Pick Up Range, or Haste, or heal for 40% HP.
Level MAX
Every 15 seconds, gain a 15 second 50% buff to either ATK, SPD, Crit, Pick Up Range, or Haste, or heal for 50% HP.
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Level 1
Level 2
Level 3
Up to date with version 0.6.1692275570
Gravity
Level 1
Every 5 seconds, create a gravitational blast that deals 125% damage. Damage is also increased by area increasing effects.
Level 2
Every 5 seconds, create a gravitational blast that deals 150% damage. Damage is also increased by area increasing effects.
Level MAX
Every 5 seconds, create a gravitational blast that deals 200% damage. Damage is also increased by area increasing effects.
Due to her skills and her Special Attack making her temporarily invincible (plus the EXP Magnet-like effect afterward), Sana is one of the characters most-suited to gain the Couch Potato achievement.
Knightly Milk is one of the most important items that can be used on Sana, as its area-enhancing effect directly increases Sana's damage output via her Speaker Of Space skill.
As one of the characters with the lowest critical hit stat, and as a character with no skills that benefit from critical hits, Sana can use Gorilla's Paw to greatly improve her attack damage without a significant loss in critical damage output from the item's critical hit penalty.
Tsukumo Sana is one of the playable characters based on retired hololive members (See: retired members).
She left Hololive on 31 July 2022, a month after HoloCure's initial release.
Orbit is a reference to Sana's design-lore where she is as large as the sun when she is in her true "Beeg" form. The choice of using Saturn in the skill's icon comes from Sana's Oshi mark being the Saturn emoji 🪐.[1]
Become Beeg is based on Sana's ability to switch between her human size and her galactic "Beeg" size through the removal of her Limiter.[1]
The Japanese kanji in the icon of Become Beeg skill is the character "大" (dai), which has the core meaning of "big".
The term "Beeg" is based on the specific way Sana pronounced "big", as she would intentionally stretch the sound with her Australian accent.
Gravity references both her control over space and the fact that her true size is on the planetary scale, alongside the gravitational pull she has at that size.
At her debut, Sana's decision to remove her limiter caused the entire solar system to deorbit and destroy itself. Thankfully, the damage was fixed by Kronii.[3]
Astrology references her general interest in astrology and astronomy.
Sana, along with Mumei, is tied for the lowest base ATK in the game, at 0.8x.
Sana's second alternate outfit introduced in Update 0.7 is based on an artwork of her made by her character artist Pako. It is the second alternate outfit in the game not based off an actual outfit used by the talents, the other being IRyS's Santa outfit.