TFT Set 17.6
Lulu, a 3-cost Stargazer unit in TFT Set 17

Lulu

3 Magic Caster 
It's Raining Stars
Passive: Gain a different secondary effect each game based on the Stargazer constellation.

Active: Call down something from the sky, dealing 150 / 225 / 360 Ability Power magic damage to 3 nearby enemies and do some special effect based on this game's Stargazer Constellation.
Damage
Ability Power
Enemies
3
Stargazer constellation secondary effects
The data feed redacts Lulu's per-constellation secondary effect into "do some special effect". These are the seven variants — one is active per game, picked by the Stargazer constellation.
The Huntress
Apply 33% Wound and cause enemies to take 10% more damage for 5 seconds.
The Mountain
Briefly Stun them and deal 20 / 30 / 50% AP additional true damage.
The Serpent
Remove 4 / 6 / 8 Magic Resistance from enemies within 1 hex of each of them.
The Altar
Apply 30% Slow to them for 2 seconds.
The Medallion
Every 6 casts drops 1 / 3 / 5 gold.
The Fountain
Deal 50 / 75 / 125% AP additional magic damage to 3 other enemies.
The Boar
Deal 5% of their Health as bonus physical damage.
Sources
League of Legends Wiki — Lulu (TFT), Mobalytics — Lulu Set 17

Traits

  • Replicator 
    Replicator abilities occur a second time at reduced effectiveness.
  • Stargazer 
    Stargazers chart a different constellation every game.

Stargazers in empowered hexes gain various bonuses, starting at (3) units.

More hexes reveal at each player level.

Lulu enables

  • Gold

    The player-level economy resource — earned each round (base income + interest + win/loss streaks), spent on rerolling the shop, buying XP, and purchasing units. Augments grant flat gold, raise interest, or make kills drop gold; some items generate gold on takedown.