Champion Star Levels in TFT

One of the most satisfying mechanics in Teamfight Tactics is upgrading your champions by combining copies of the same unit. Star levels represent a champion's upgrade tier, and each upgrade dramatically increases their combat effectiveness. Understanding how star levels work, what they cost, and when to pursue them is central to TFT strategy.

How Upgrades Work

Champions start at 1-star when you purchase them from the shop. Upgrades happen automatically when you collect enough copies:

  • 3 copies of the same 1-star champion combine into a single 2-star version.
  • 3 copies of the same 2-star champion (meaning 9 total 1-star copies) combine into a single 3-star version.

The combination happens instantly and automatically whenever you have three matching copies on your board or bench. You'll see stars displayed beneath the champion's model to indicate their current star level.

Stat Multipliers

Each star level provides a substantial increase in a champion's stats:

  • 2-star: Roughly 1.8x the base HP and AD of a 1-star. The champion's ability also scales up significantly, typically dealing more damage, providing a larger shield, or lasting longer.
  • 3-star: Roughly 3.24x the base HP and AD of a 1-star (1.8x of the 2-star values). At this level, the champion's ability reaches its maximum power, often with additional effects or dramatically increased numbers.

These are approximate multipliers and can vary slightly between champions, but they illustrate the magnitude of each upgrade. A 2-star champion is not just marginally better than a 1-star; it is nearly twice as strong across the board.

Sell Values

Champions return gold when you sell them, and the amount scales with star level:

  • 1-star: Sells for the champion's base cost (a 3-cost champion sells for 3 gold).
  • 2-star: Sells for 3x the champion's base cost (a 3-cost 2-star sells for 9 gold).
  • 3-star: Sells for 9x the champion's base cost (a 3-cost 3-star sells for 27 gold).

This means upgrading champions is gold-efficient: you spend 3 copies worth of gold to create a 2-star that sells for 3x the cost. There is no gold lost in the upgrade process, which makes buying pairs and holding potential upgrades a low-risk strategy.

The Power Spike of 2-Stars

Hitting 2-star on your key champions is one of the most important milestones in any game of TFT. The difference between a board of 1-star units and a board of 2-star units is enormous:

  • Survivability nearly doubles, meaning your champions live longer to deal more damage and cast more abilities.
  • Damage output jumps significantly, both from auto-attacks and abilities.
  • Board stability increases, allowing you to win more rounds and preserve your health total.

In practice, you should prioritize upgrading your most important champions (especially your primary damage dealers and frontline tanks) to 2-star as quickly as possible. A smaller board of 2-star champions will usually outperform a larger board of 1-star champions.

3-Star Strategies

While every champion can theoretically be upgraded to 3-star, it requires finding 9 total copies, which is a significant investment. Two common strategies for pursuing 3-stars are:

  • 3-starring 1-costs: Because 1-cost champions have the largest pool size (22 copies each) and appear frequently at low levels, it's practical to 3-star them by rerolling at level 4 or 5. Some compositions are built entirely around a powerful 3-star 1-cost carry.
  • 3-starring 3-costs: With 17 copies in the pool and reasonable appearance rates at levels 6-7, 3-cost champions are another popular 3-star target. These "slow roll" strategies involve saving gold above 50 and spending only the interest each round to gradually find copies.

Attempting to 3-star 4-cost or 5-cost champions is generally unreliable because of their smaller pool sizes and lower appearance rates. It happens occasionally in very long games or with specific augment support, but it should not be a primary game plan.

When to Hold and When to Sell

Managing your bench space around potential upgrades is an ongoing decision:

  • Hold pairs: If you have 2 copies of a champion you plan to use, keep them. The odds of finding the third copy make it worth the bench space.
  • Sell singles late: A single copy of a champion you don't need is often worth selling to free up bench space or hit an interest threshold.
  • Don't force 3-stars: If the champion pool is heavily contested or you're low on health, it may be better to level up and field stronger units rather than chasing a 3-star that may never come.