The Primordian reroll is one of the cleanest loss-streak strategies in TFT Set 17
Three cheap units, a Swarmling army that scales with star level, and a clear path to 3-starring everything before your opponents even finish leveling. Primordian rewards patience and economic discipline more than any flashy late-game comp. Get the stars, get the Swarmlings, cap out with Bel'Veth and Challengers. That's the whole plan.
How does the Primordian trait work?
Primordian generates Swarmlings based on two variables: the amount of damage dealt and the star level of your Primordian units. This is the core reason the trait is built as a reroll comp. Higher star levels mean more Swarmlings, which means more damage output over the course of a fight.
The trait has two breakpoints:
- (2) Primordian: Dealing damage spawns Swarmlings scaled to your Primordians' star level.
- (3) Primordian: Spawns even more Swarmlings. Each round, you also gain a random 1 or 2-cost champion.
The round-one free champion from the 3-Primordian bonus is not just a nice bonus. It actively helps you econ up and reach higher levels faster, which is how you cap the board in the late game.
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The 8% of damage taken converting to damage dealt is a passive built into the trait. It rewards tankier Primordian units staying alive longer, so positioning your frontline correctly amplifies this benefit.
Who are the Primordian champions?
Primordian has exactly 3 units, which makes the trait pool tight and rerolling for 3-stars very achievable. Each unit brings secondary traits that shape how you build the rest of your board.
Briar Fish Frenzy vs tanks
Briar (1-cost, Anima + Rogue)
Briar runs a dual-function ability called Fish Frenzy. The passive gives her attack speed for every percent of missing health, scaling off AP. Her active deals physical damage (AD-scaling) to the current target, with bonus physical damage if that target is a tank. This makes her a strong anti-tank tool, especially in a meta where tanky frontlines are common.
The Rogue trait adds AD and AP on top of her base stats. She also gains an Edge of Night-style effect when she drops below 50% health, redirecting enemy targeting away from her. Historically this kind of damage-redirect effect has been powerful, and Briar benefits from staying alive to keep her passive attack speed rolling.
Rek'Sai (1-cost, Brawler)
Rek'Sai is your frontline anchor. Her ability, Upheaval, heals for a percentage of her maximum health (scaling with Health and AP), then knocks up adjacent enemies and deals magic damage (AP-scaling). The knock-up is the key here. It buys time for your Swarmlings to deal damage and gives your carries extra seconds of free combat. Rek'Sai's Brawler trait gives her extra HP, making her harder to kill and improving the Primordian 8% damage conversion passive.
Bel'Veth (2-cost, Challenger + Marauder)
Bel'Veth is the primary carry you build around. Her ability, Tidal Slashes, unleashes a flurry of physical damage hits to the current target over a short duration, with each hit scaling off both AD and AP. The number of hits scales with her attack speed, which means she rewards attack speed itemization heavily. The Challenger trait amplifies this further, making Bel'Veth the obvious item holder for the comp.
Bel'Veth being a 2-cost rather than a 1-cost matters for pool size. There are fewer 2-cost copies available than 1-cost copies, so you may need to roll slightly more aggressively to hit her 3-star compared to Briar and Rek'Sai.
Bel'Veth Tidal Slashes scaling
warning
Do not give Bel'Veth items until you are confident in playing the Primordian line. If you pivot away, her items may not transfer well to a different carry.
How to play Primordian from stage 1 to late game
Early game (stages 1 and 2): hold units, consider Anima
The priority in stages 1 and 2 is simple: hold every Primordian unit you see. Do not sell them. Play a weak board intentionally to start a loss streak, which builds your gold reserves for the critical rolling windows ahead. According to the Mobalytics guide by Silverfuse, if you get lucky with the Anima trait early, playing it can generate free rerolls through the Anima cash-out system, which accelerates your path to 3-stars.
Stage 3-1 (level 4): first roll-down
At stage 3-1 while at level 4, roll until you reach 35 gold, picking up Primordian units as they appear. Do not level up. Spending XP here kills your econ and delays 3-stars. The goal is to start building toward completed 3-star copies, not to hit level 6 or 7 early.
Stage 3-2 (level 5): econ back to 50 gold
At 3-2, level naturally to 5 and rebuild your economy to 50 gold. From this point, you slow roll above 50 gold. Slow rolling means you only spend the interest overflow above 50, keeping your gold healthy while still hitting the shop every round for Primordian units.
danger
Never drop below 50 gold during the slow roll phase unless you are one copy away from a 3-star. The interest from 50 gold compounds fast enough that burning it prematurely sets your entire timeline back.
Late game: capping with Challengers
Once all three Primordians are 3-starred, the comp shifts. Bel'Veth is your carry, and the Challenger trait is how you power her up further. Add Challenger units to the board to stack the Challenger bonus on top of her already high attack speed. The Marauder trait from Bel'Veth is a secondary consideration, but Challenger is the priority.
In the very late game, it becomes acceptable to drop either Briar or Rek'Sai to make room for additional Challengers. Both are 1-cost units, so their combat contribution at 3-stars is real but not irreplaceable once Bel'Veth has full Challenger support. The free champion from the 3-Primordian bonus also helps you reach higher levels to add those capping units.
What items should you build on Primordian?
Item priority follows the carry. Bel'Veth wants attack speed and damage. Her Tidal Slashes ability fires more hits with more attack speed, so items that stack AS directly translate to more total damage per cast. AD items scale her physical damage per hit as well.
For Briar, her passive attack speed gain from missing health means she benefits from AD items to make those auto attacks count. AP also improves her passive attack speed scaling, so hybrid AP/AD itemization works.
Rek'Sai benefits most from tank items that increase her maximum health, since her Upheaval heal is percentage-based. More max HP means bigger heals and a sturdier frontline.
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If you receive the Anima trait augment early, it can provide item components through the cash-out system. Prioritize funneling those components toward Bel'Veth's attack speed build.
Why is Primordian a reroll comp and not a fast-level comp?
The answer is in the cost distribution. Briar and Rek'Sai are both 1-gold units, and Bel'Veth is 2-gold. None of them benefit from leveling to 7, 8, or 9 to appear more frequently in the shop. Their power comes entirely from star level, not from being high-cost units with naturally strong base stats.
Fast-leveling comps spend gold on XP to find expensive carries. Reroll comps spend gold on shop rolls at low levels where cheap units appear at high rates. Primordian is the latter. The Swarmling output at 3-star across all three units is significantly higher than at 2-star, making 3-starring all three units the single most important goal in the game.
For more TFT Set 17 strategies and the latest comp tier lists, browse more guides on GAMES.GG.
Primordian champion comparison
Primordian is one of the more forgiving reroll comps in Set 17 because the units are cheap, the pool is small (only 3 champions), and the strategy is linear. The trap is spending gold too early or leveling when you should be rolling. Stick to the slow roll above 50 gold, hit all three 3-stars, then transition into Challengers for Bel'Veth to close out games.