Union Arena Re:ZERO Ram Deck Guide: Yellow Build 2026

How we checked this: we pulled Bandai's Yellow Re:ZERO list through its Bandai TCG+ deck code, compared it card by card with the list that won a Hotkei weekly on October 7, read every card on Bandai's official card list, priced both lists on TCGplayer on October 16, 2026 and worked out the draw odds with a script.

Updated October 16, 2026: We added Bandai's official list and a winning local list with prices, replaced the September 19 decklist-site snapshot with current numbers, and cut the generic step-by-step section.

The Union Arena Re:ZERO Ram deck list

Bandai put three Yellow Re:ZERO decks in its Recommended Decks by Title on September 10. One is the Ram and Rem build. Yosoydemil won the Hotkei weekly on October 7 with a list that shares 42 of its 50 cards and plays more Ram:

The two lists agree on the expensive cards and on every event. Bandai plays the starter-deck Rem (103) and a second 4-energy Rem (017); Yosoydemil swaps those for four Ram (008) and full sets of the zero-energy Ram (007) and Rem (013). That's the "Ram deck": 20 Ram cards instead of 14.

What Ram adds

Ram (009) is the card you want early. It's 1 energy for a 2000 BP body that looks at the top three for a Ram, Rem or Roswaal card, and if it finds one you place a card from your hand into the sideline. Bottom the misses in the order you want to see them again.

Image: Bandai, UNION ARENA official card list

Ram (011) is the payoff. She's a 4-energy, 4000 BP Raid onto any Ram, and When Played she shrinks their board: every front-line character with 1500 or more BP loses 1000, or one with 2500 or more loses 2000. On their turn, while she's on your front line, she can take the hit when their ability would sideline a Rem. Pick the wide mode when you have several attackers; pick the 2000 cut when one blocker is the problem.

Image: Bandai, UNION ARENA official card list

The extra Ram in Yosoydemil's list are about Raid targets. Ram (011) can only Raid onto a Ram, and Ram (008) is a 3000 BP body for 2 energy with Step, so it can drop back to your energy line when you don't need it in front. Ram (010) draws a card if Rem or Roswaal is already on your field.

The Rem half finishes the game

Rem (019) is the most expensive card in the deck for a reason. It's a 4-energy Raid onto Rem that, When Played, puts a yellow Ram or Rem with 3 or less required energy from your hand onto the field resting, and once per turn gives a Ram or another Rem Impact 1.

Rem (020) closes. It's a 5-energy Raid that gains Snipe once per turn, so the opponent can't block, but it can't Snipe anything with 4000 or more BP, and you place one base card of the Raided character into your sideline to do it. That's why the rest of the list keeps cutting BP. Ram (011) or Rem (018) taking 2000 off a 5000 BP character puts it in Snipe range, and Demon Power sidelines anything at 5000 or less outright if Rem is on your field.

Image: Bandai, UNION ARENA official card list

Joseph Writer Anderson put this deck first in his Re:ZERO ranking for exactly this turn: "The ability to free-play characters, reduce your opponent's board to low BP characters, and then easily Snipe with Impact at just five energy-cost feels like an instant classic." Demon Sisters, which stands up two of your AP cards, is what lets you fit the Raid and the Snipe attack into one turn.

What the odds say

Both lists play twelve Raid cards (four each of Ram 011, Rem 019 and Rem 020), so they find one equally often. The difference is the Ram for Ram (011) to land on:

With Bandai's list, roughly one opening hand in five has no Ram for the Raid; Yosoydemil's list cuts that to about one in twenty. If Ram (011) is the card you want to land every game, play the extra Ram (008) and Ram (007).

Is the Ram deck winning?

At locals, yes. Re:ZERO became tournament legal with its release events on September 10. The only North American regional since then was Play!TCG in Milwaukee on October 3, and Bandai hasn't posted its top four yet, so there's no official result to point at. UnionArenaDecklists logs 240 public Ram lists, newest October 16, with nine recent top-eight finishes, including Yosoydemil's Hotkei weekly win on October 7 and a second place at Rumblerama on October 10.

JWA's prediction was blunt: "Rem/Ram is the strongest deck in Re:ZERO and it's not really very close." He gave it the set's best shot at S tier and called it high A at worst.

SoulRage posted a locals grand final with Rem and Ram against Subaru and Beatrice if you want to see the Raid turns played out:

What it costs

Three cards are the bill. Four each of Ram (011), Rem (019) and Rem (020) come to $54.48, which is 92% of Bandai's list and 94% of Yosoydemil's. Every other card was under 30 cents. The chase printings are a separate hobby: the SR** parallels of Ram (011) and Rem (019) sat above $400 each on October 16. They play the same.

If you're still choosing between the starter deck and singles, our Re:ZERO buying guide breaks down the sealed options.

Our take

Build Yosoydemil's version. It costs about the same as Bandai's, and the extra Ram means Ram (011) lands more often, which is the whole point of calling it a Ram deck. Play it at locals with confidence. Before you travel to a regional with it, wait for the Milwaukee top four; Purple Solo Leveling took three of the four spots at the regional before it.

If you'd rather lean the other way, the Rem deck guide covers the Rem-heavy build, and the Re:ZERO tier list ranks the other colors.

Frequently Asked Questions

Is Ram a separate Union Arena Re:ZERO deck from Rem? No. Every competitive Ram list is Yellow Rem/Ram. Bandai's list plays 14 Ram and 28 Rem; the list that won a Hotkei weekly on October 7 plays 20 Ram and 22 Rem.

What does Ram UE24BT-009 do? It's a 1-energy, 2000 BP character. When Played, it searches the top three for Ram, Rem or Roswaal L Mathers, and if it adds a card you place one card from your hand into your sideline.

What does Ram UE24BT-011 do? It's a 4-energy, 4000 BP Raid onto Ram. When Played, every opposing front-line character with 1500 or more BP loses 1000, or one with 2500 or more loses 2000. On their turn she can be sidelined in place of a Rem.

How much does the Yellow Ram/Rem deck cost? Bandai's list cost $58.98 on TCGplayer on October 16, 2026, and Yosoydemil's cost $58.08. Ram (011), Rem (019) and Rem (020) are $54.48 of either.

Is the Ram build competitive? It's winning locals. Bandai hasn't posted a regional top four with Re:ZERO legal yet, but 240 public lists and nine recent local top eights say it's the set's main deck.

Correction, October 21, 2026: the Ram hub count went from 230 to 240 lists (newest October 16), and the hub no longer lists Yosoydemil's October 5 weekly win, so we've dropped it and kept the October 7 Hotkei win.

Related Reading

• Union Arena Current Meta: official regional results across every set.
• Union Arena Re:ZERO Emilia Deck Guide: the Event-heavy Emilia build.
• Union Arena Deck Building Guide: 50-card construction, energy and card ratios.
• All Union Arena Sets: EN Release Schedule: where Re:ZERO sits in the English release calendar.