Repudiate // Replicate

Bracket

• B1 Exhibition — allowed: No restriction at this bracket
• B2 Core — allowed: No restriction at this bracket
• B3 Upgraded — allowed: No restriction at this bracket
• B4 Optimized — allowed: No restriction beyond the banned list
• B5 cEDH — allowed: No restriction beyond the banned list

Why

• No Game Changer, mass land denial, extra turn, tutor or two-card combo

How Lotus Vault estimates a bracket

Bracket: Lotus Vault analysis, with Commander Spellbook flags

Combos

12 known combos.

Combos: Commander Spellbook

Rulings

• 2024-01-12 · Wizards of the Coast
  Triggered abilities use the word "when," "whenever," or "at." They're often written as "[Trigger condition], [effect]." Some keyword abilities, such as afterlife, are triggered abilities and will have "when," "whenever," or "at" in their reminder text.
• 2024-01-12 · Wizards of the Coast
  If you counter a delayed triggered ability that triggered at the beginning of the "next" occurrence of a specified step or phase, that ability won't trigger again the following time that phase or step occurs.
• 2024-01-12 · Wizards of the Coast
  Any enters-the-battlefield abilities of the copied creature will trigger when the token enters the battlefield. Any "as [this creature] enters the battlefield" or "[this creature] enters the battlefield with" abilities of the chosen creature will also work.
• 2024-01-12 · Wizards of the Coast
  An activated mana ability is one that adds mana as it resolves, doesn't have a target, and isn't a loyalty ability. A triggered mana ability is one that adds mana and triggers on an activated mana ability.
• 2024-01-12 · Wizards of the Coast
  Activated abilities are written in the form "[Cost]: [Effect]." Some keyword abilities, such as equip, are activated abilities and will have colons in their reminder texts. Loyalty abilities of planeswalkers are activated abilities.
• 2024-01-12 · Wizards of the Coast
  Abilities that create replacement effects, such as a permanent entering the battlefield tapped or with counters on it, can't be targeted. Abilities that apply "as [this creature] enters the battlefield" are also replacement effects and can't be targeted.
• 2024-01-12 · Wizards of the Coast
  If the copied creature is copying something else (for example, if the copied creature is a Mirror Image), then the token enters the battlefield as whatever that creature copied.
• 2024-01-12 · Wizards of the Coast
  If the copied creature has {X} in its mana cost, X is considered to be 0.
• 2024-01-12 · Wizards of the Coast
  If the copied creature is a token, the token that's created copies the original characteristics of that token as stated by the effect that created the token.
• 2024-01-12 · Wizards of the Coast
  The token copies exactly what was printed on the original creature and nothing else (unless that creature is copying something else or is a token; see below). It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on.
• 2022-12-08 · Wizards of the Coast
  Each split card is a single card. For example, if you discard a split card, you've discarded one card, not two. If an effect counts the number of sorcery cards in your graveyard, Assault // Battery counts once, not twice.
• 2022-12-08 · Wizards of the Coast
  Each split card has two names. If an effect instructs you to choose a card name, you may choose one of those names, but not both.
• 2022-12-08 · Wizards of the Coast
  To cast a split card, choose one of its halves to cast. There's no way to cast both halves of this split card.
• 2022-12-08 · Wizards of the Coast
  Split cards have two card faces on a single card. The characteristics of the half you didn't cast are ignored while the spell is on the stack.
• 2022-12-08 · Wizards of the Coast
  If you copy a spell that's half of a split card, the copy copies that same half. For example, if you copy Assault, the copy is also Assault, not Battery.
• 2022-12-08 · Wizards of the Coast
  A split card's characteristics are a combination of its two halves while it is not on the stack. For example, Assault // Battery has a mana value of 5 while it is in your library. If an effect allows you to search your library for a card with mana value 4 or less, you can't find Assault // Battery.
• 2022-12-08 · Wizards of the Coast
  If an effect allows you to cast a spell with certain characteristics, consider only the characteristics of the half you're casting. For example, if an effect allows you to cast a sorcery spell with mana value 2 or less from among cards in your graveyard, you could cast Assault this way, but not Battery.

Rulings: Scryfall · Wizards of the Coast