AI Overview: To upgrade cards in Clash Royale well, level the cards in your main deck first, then the ones that beat the cards you meet most. Gold is the limit, not cards. All figures come from the October 2026 card data. Costs come straight from the official card list.
Last Updated: October 2026
Key Points:
- Gold is the limit. Do not upgrade a card you do not play.
- Upgrade for counters: a level that changes who wins a trade is worth more than a level that adds a little damage.
- Same rarity and level cost the same gold, so compare gain per upgrade, not price.
- Old Legendary rule: skip it unless the main deck is fully upgraded.
- The old tournament caps (Commons 9, Rares 7, Epics 4, Legendary 1) belong to an older level system and are not repeated as current.
Which Cards to Level First
Gold is limited, not cards. And the gold cost is the same for any upgrade of the same rarity and level. So the question is never which upgrade is cheap. It is which upgrade gives the most.
- Cards in your main deck. If you do not play a card, do not upgrade it. Upgrading Freeze for no reason is a waste.
- Cards that beat a rival’s counter. The old examples: an equal-level Musketeer survives a Fireball; Zap at level 8 cannot finish Goblins at level 9. Check which level makes the trade flip.
- A second card above the counters. A spell such as Zap to kill Minion Horde or Arrows to kill Princess.
- A versatile card. One that fits many decks, like Spear Goblins, or one the deck depends on, like Hog Rider.
- The rest of the deck. Bring every card in the deck up, so you do not run a level 4 Rare in a high arena.
Do not switch decks all the time. A low-level Rare or Epic is a weak pick in a higher arena. A deck that is popular with other players is not good for you if your cards are low. Stick with decks built on the cards you have upgraded.
Which cards are worth the gold in 2026 depends on current data. Check the card pages: Zap (2 elixir, Crown Tower damage 58 to 48 on June 1), Hog Rider and Royal Giant. For old and new upgrade costs, see card upgrade costs.
Supercell has changed the level system since this page was written, so a chart of what each level beats is no longer reliable. The negative effect: a player who upgrades to hit an old threshold, such as a Zap level, may find the number has moved and the gold bought nothing.
Spear Goblins vs Royal Giant: The Maths
The old example: level 8 to 9. Spear Goblins gain 10 hit points (to 100), 4 damage (to 46) and 3 DPS (to 35). Royal Giant gains 228 hit points (to 2,316), 15 damage (to 144) and 10 DPS (to 96). Most players call Royal Giant the obvious choice.
| Stat gain | Spear Goblins (per unit) | Royal Giant |
| Hit points | +10 on 90 = +11.1% | +228 on 2,088 = +10.9% |
| Damage | +4 on 42 = +9.5% | +15 on 129 = +11.6% |
| DPS | +3 on 32 = +9.4% | +10 on 86 = +11.6% |
The percentages are close. Royal Giant gains about 2 points more in damage and DPS, and the goblins gain a little more in hit points. The cost for both is the same, since both are Commons. Three Spear Goblins add 9 DPS in total, but each goblin also gains 10 hit points, so the whole card gains about 30 hit points of staying power.
The risk side: Spear Goblins fit almost every deck and last the whole match. Royal Giant fits few decks, and a nerf can hit one deck type hard. That is why a Royal Giant upgrade is the riskier move. Today Royal Giant is a 6-elixir Common, so the same logic holds.
The old levels in this example come from the pre-update system. Treat the lesson, not the numbers, as current: compare the percentage gain, then the number of decks the card fits. The Spear Goblins guide lists where the card unlocks and which decks run it.
A card that fits many decks can still be reworked, as Goblins were on August 4, 2026. The negative effect: the safe pick for upgrades is never fully safe, and a player who puts all their gold in one cheap card can see its role change.
Buying a Legendary: Two Rules
Rule one: buy one if you struggle to stay in your arena without it. If you are on a long losing streak and a Legendary would fix it, buy it. Rule two: do not buy one if your main deck is not fully upgraded.
Check the price and the arena first. This page could not confirm today’s shop price. What is certain is that the 13 Legendaries in the swaps guide unlock in Arena 11 to 14, so you may not see them in the shop until late in the climb.
- Pick one Legendary at a time and make sure your deck needs it.
- Compare to a swap. A cheap card may do 80% of the job. See the Legendary swaps guide.
- Look at the data. Royal Ghost’s best list wins 77.0%, but Ram Rider’s best is 48.0%.
For the 17 Legendaries ranked by current data, see the best Legendary cards page. For the overall plan, the improvement guide shows how to spend practice time.
If the shop price for Legendaries rises, new players will take longer to reach a fully upgraded deck plus a Legendary. The negative effect: players who give up on the climb because the price feels too high may leave before they see the best cards.
Upgrade Rules
The short version: gold is limited, not cards. Spend it where it changes a trade.
Do not upgrade what you do not use
Upgrading a card for no reason wastes gold. Wait until you need the card, or until a small upgrade gives the XP for your next level.
Upgrades are not equal
Ask how the upgrade compares to the opponent counters. A Musketeer at the same level survives a Fireball, and a level 8 Zap cannot finish a level 9 Goblin. Upgrade the card whose counters stop working.
Where no hard counter exists
Compare the options in terms of the trades they win, not the rarity.
Gold costs are the same for the same rarity and level
So rarity does not make an upgrade cheaper, only more or less useful.
The move: before the next upgrade, name the trade it changes and the counter it beats.
Frequently Asked Questions
Which cards should you upgrade first in Clash Royale?
The cards in your main deck, then the ones that beat the cards you meet most.
Should you upgrade a card you do not play?
No. Gold is the limit, so keep it for your main deck.
Is the gold cost the same for every card?
The cost is the same for the same rarity and level.
Should you buy a Legendary early?
Only if you struggle without it and your main deck is fully upgraded.
Is Royal Giant or Spear Goblins the better upgrade?
The gains are close. Spear Goblins fit more decks and carry less risk.
Sources
Researched from the following (no links, listed for transparency):
- CryptoAIMeta card guides for these cards, built from RoyaleTracker October 2026 samples and SeeMeta 2026 balance changes
- SeeMeta, Clash Royale balance changes 2026 (page updated October 2026), read through search summaries
- Supercell official Clash Royale API, card list (elixir cost, rarity, unlock arena)