Roll Pets to Fight Upgrade Tree, Relics & Potions

The Upgrade Tree is where Roll Pets to Fight turns a temporary pet board into lasting power. Rolling the lever and buying pets raise your ceiling for a while; tree nodes, relics, potions, and pet levels decide whether that ceiling keeps rising after every biome gate. This guide explains how to spend Gold and materials on upgrades without starving your pens—and how consumables should support bosses instead of replacing fundamentals.

Read this alongside Pets and Pens and How to Rebirth. Upgrades and Rebirths are a paired system: the tree makes resets valuable, and resets make future tree climbs faster.

What the Upgrade Tree is for

Think of the tree as three jobs:

1. Economy nodes — help you earn or convert loot into Gold faster so every future purchase is cheaper in time.
2. Combat nodes — increase damage, clear speed, or survivability so pens beat biome bosses.
3. Quality-of-life / unlock nodes — reduce friction (faster loops, better access to systems) so you can play the real game instead of menus.

Early sessions should heavily favor economy and cheap combat. Fancy end branches can wait until Meadow is solved and mid Biomes are open.

Suggested purchase priority

Phase 1 — Stabilize the loop. After codes from the Codes Hub and a full starter pen line, buy the cheapest nodes that accelerate Gold or basic damage. Your goal is a self-funding loop: fight → sell → upgrade → fight.

Phase 2 — Support mid biomes. Add combat nodes that shorten boss fights and any branches that improve pet leveling speed. Mid zones punish boards that look rare but hit soft.

Phase 3 — Prepare Rebirth. Before your first meaningful reset, finish nodes you know survive or that pay for themselves during the recovery push. Details on timing live in How to Rebirth.

Phase 4 — Late and Void Rift. Fund expensive combat and specialty branches once high-band pets are seated. This is also when relics and potion stockpiles become normal tools rather than panic buttons.

Never empty your entire Gold reserve into the tree while pens have empty slots. A node cannot fight a boss for you if the board is hollow—fill pens first, then multiply them.

Pet levels

Pets gain strength as they fight in pens. Levels are the quiet backbone of progression:

• Seat pets you intend to keep so XP is not wasted on fillers you will replace in five minutes.
• When two pets share a rarity band, the higher-level one usually deserves the pen.
• After a shop upgrade, give the new pet time in a pen before judging it.
• Dungeon parties in Dungeon reward leveled teams; underleveled high rarities disappoint in co-op just like they do solo.

If biome progress stalls and your rarity band looks “fine,” check levels. A mid-tier leveled squad often outruns a freshly bought high-tier that has not fought yet.

Relics

Relics are longer-term power pieces that modify how your pets or account perform. Exact relic names rotate with updates, but the spend logic stays stable:

• Prioritize relics that boost the content you are actually playing (biome clears vs dungeon depth).
• Do not buy a relic that only helps a flex strategy you cannot run yet.
• Re-evaluate relics after Rebirths and after big pen swaps.
• Pair relic upgrades with tree nodes rather than treating them as a separate wallet.

Relics shine when your pens and tree are already competent. They are multipliers on a working plan, not a substitute for seating pets.

Potions

Potions are burst tools. Use them on purpose:

• Good uses: unlock bosses, Void Rift walls, coordinated dungeon pushes, TOP DUNGEON attempts.
• Bad uses: Meadow trash packs, showing off in chat, “maybe it helps” spam while pens are empty.

Stock potions from loot and shop sinks only after economy nodes and pen floors are healthy. A potion during a planned attempt can save minutes; a potion during a broken board saves nothing.

Combine potions with a reseated board and recent Upgrade Tree buys for maximum effect. If you still fail, the answer is usually more permanent power—not a second identical chug.

Upgrades vs rolling vs buying pets

Players often ask where the next Gold pile should go. Use this triage:

• Empty pens or huge power gaps on the board → pets first (Pets and Pens).
• Full board, slow Gold → economy tree nodes.
• Full board, decent Gold, boss timers too long → combat nodes, levels, then targeted higher-band pets.
• About to hit a known wall or dungeon night → reserve potions; buy missing relics if they are the bottleneck.
• Bored and rich with a complete board → controlled rolling for upgrades, not Infinity lottery tickets at trillion-to-one odds.

The Pets Tier List helps you avoid overpaying for rarity bands that barely beat your current leveled mids.

Rebirth interaction

Rebirths reset short-term progress in exchange for lasting multipliers. The Upgrade Tree is why that trade can be good: permanent nodes and account multipliers make the recovery climb faster than the first climb. If your tree is still mostly untouched, rebirth early and you will redo Meadow-level pain for little gain.

Before resetting, screenshot or note:

• Which tree nodes you already own
• Whether your best pets will still give you a workable recovery board
• How many potions you are keeping for the post-rebirth push
• Which biome you expect to reclaim first

Then follow How to Rebirth for timing rules of thumb.

Practical session plan

1. Sell loot.
2. Fill or repair pens.
3. Buy the next affordable tree node on your phase list.
4. Fight the current biome bosses.
5. Consider a relic only if it clearly removes a bottleneck.
6. Pocket potions unless a wall is scheduled.
7. Recheck Biomes unlock readiness.

Repeat until the next Rebirth or dungeon night.

Related guides

• Getting Started
• Pets and Pens
• Biomes
• How to Rebirth
• Dungeon
• Tier List Hub
• Guides Hub

Invest in the Upgrade Tree like a production building, not a casino. Pens create damage; the tree makes that damage compound.