Roll Pets to Fight Pets, Pens, Rolling & Buying

Pets are the entire combat system in Roll Pets to Fight. You do not swing a sword—you roll companions, buy upgrades to the roster, and seat fighters in pens so they can farm bosses while you manage Gold. This guide explains rolling, buying, rarity reading, and pen placement so your board keeps pace from Meadow through later biomes. Pair it with Getting Started if you are brand new, and with the Pets Tier List when you are ready to spend a large Gold stash.

Beacon Interactive ships on the order of 100 pets across 13 rarity tiers starting at Common and topping out at Infinity. Infinity’s listed odds sit near 1 in 1,000,000,000,000—a flex tier, not a farming plan. Practical power comes from seating the best pets you can actually obtain, leveling them, and supporting them with the Upgrade Tree.

Rolling at the lever

Pulling the lever is the primary free-to-play acquisition path. Each roll samples the rarity ladder. Early on you will see Commons and other low bands constantly; that is healthy. Seat the strongest results immediately. Duplicate low pets become sell pressure or temporary fillers until a better roll lands.

Good rolling habits:

• Never roll while pen slots sit empty if you already own seatable pets.
• Stop rolling for a minute after a clear upgrade lands—go fight and sell so Gold regenerates.
• Track whether your average pen rarity is rising, not whether you got one shiny outlier.
• Save heavy rolling sessions for after economy upgrades and codes from the Codes Hub.

Rolling is entertainment and progression. If a session of pulls does not improve the weakest pen, switch to boss farming and shop evaluation instead of tilting into the lever.

Roll Pets to Fight pets, pens, and early progression overview

Buying pets with Gold

Gold comes from selling boss loot. The shop lets you convert that Gold into targeted pets when RNG refuses to cooperate. Buying is strongest when it raises your floor: replace the worst pen, not your already-best fighter. Mid-tier shop pets that you can level often beat waiting hours for a high-tier roll you cannot seat effectively yet.

Spend order that stays solvent:

1. Fill every unlocked pen.
2. Buy the cheapest Upgrade Tree nodes that boost income or damage (see Upgrade Tree).
3. Purchase a pet that upgrades your weakest slot into the next rarity band.
4. Keep a Gold buffer for potions before dungeon or biome walls.
5. Only then chase luxury rarities.

If you are unsure which band to fund, open the pets tier list for early / mid / late S·A·B investment guidance.

Reading the 13 rarity tiers

Think in bands instead of memorizing every label on day one:

• Low band (Common and early tiers) — tutorial fuel. Seat them, level them, replace them as soon as mid pets appear.
• Mid band — the real campaign workhorses. Most Meadow-to-mid-biome clears are won here.
• High band — expensive power for late biomes, dungeon depth, and leaderboard pushes.
• Infinity — ultra-rare flex at roughly one-in-a-trillion odds. Celebrate if it happens; do not plan your economy around it.

Rarity is not the only stat that matters. A leveled mid pet in a pen outperforms an unleveled high pet left in storage. Pet levels, relics, and potions from the Upgrade Tree ecosystem close gaps that raw rarity cannot.

Pen placement priorities

Pens are your active lineup. Treat them like a team sheet:

• Fill first. Empty slots are wasted boss DPS.
• Raise the floor. Sort pets by current effective power and upgrade the bottom two slots before polishing the top slot.
• Keep dungeon backups. Parties of up to four in the Dungeon benefit from having extra leveled pets ready, not a single diva.
• Match biome pressure. When Biomes stall, your average pen power—not your rarest screenshot—is usually the problem.
• Re-seat after upgrades. New relics, levels, or shop buys should trigger a quick board audit.

A clean habit is to audit pens every time you sell a big loot pile. Ask: did this Gold make the weakest pen stronger? If not, your spend was cosmetic.

Levels, relics, and potions

Pets grow through levels as they fight. Relics and potions layer burst or permanent help on top. Do not blow consumables on Meadow trash packs once you understand the loop—save them for unlock bosses, Void Rift approaches, and coordinated dungeon attempts. Permanent Upgrade Tree nodes almost always beat panic potion use; details are in Upgrade Tree.

Rebirths interact with pets too. Before you reset, read How to Rebirth so you know what progress you are trading for multipliers. Rebirthing with a chaotic pen board just returns you to a weaker version of the same mistake.

Early, mid, and late pet goals

Early. Full pens of the best low and low-mid rolls. Learn sell cadence. Ignore Infinity talk in chat.

Mid. Stable mid-band board, selective shop buys, first serious Upgrade Tree branches, and biome unlocks beyond Meadow. This is where most of your playtime value lives.

Late. High-band seating, dungeon party synergy, TOP DUNGEON attempts, and only then luxury rolling. Void Rift expects disciplined boards, not one lucky pull.

Synergy with the rest of the wiki

• New player path: Getting Started
• Map unlocks: Biomes
• Multipliers: Upgrade Tree and How to Rebirth
• Co-op: Dungeon
• Rankings: Tier List Hub → Pets Tier List
• Freebies: Codes

Return to the Guides Hub for the full tutorial index. Master pens first; every other system in Roll Pets to Fight assumes you already seat your fighters correctly.