New Format: Conquest

I would like to propose adding support for the **Conquest** format in XMage. Conquest is a community-run Commander variant focused on competitive balance and variety of viable strategies.Implementing Conquest in XMage would provide players with more variety and attract those interested in this emerging format.

## Detailed Description

### Overview of Conquest

Conquest is a singleton format similar to Commander but with key differences that create a fresh gameplay environment:

- **Singleton Rule**: Decks are singleton (only one copy of each card except basic lands).
- **Deck Size**: Minimum of **80 cards**, unlike Commander's 100-card decks.
- **Starting Life Total**:
- **Multiplayer games**: Players start with **30 life** (Commander is 40 life).
- **1v1 games**: Players start with **25 life**.
- **Commander Mechanic**: any legendary creature or planeswalker can be your commander.
- **Commander Damage**: Set to **12 damage** instead of 21.
- **Scry Rule**: In multiplayer games, after mulligans and before pregame actions, each player who is not first performs **Scry X**, where X is the number of players acting before them in turn order.

### Card Legality

- **Card Pool**: All cards **excluding**:
- Reserved List cards.
- Silver-bordered cards.
- Cards with acorn-shaped security stamps.
- All cards that involve the sticker and attraction mechanics
- **Ban List**: Conquest has a unique ban list, including certain powerful cards and the ten fetchlands from Zendikar and Onslaught. which can be found [here](https://docs.google.com/document/d/1LOh-zWLvt2CLSsSIsBCEURVNmyKGyznINwvJsXZymy4)

### Comparison with Commander

- **Deck Size**: 80-card minimum vs. Commander's 100 cards.
- **Starting Life Total**: 30 life in multiplayer and 25 life in 1v1 vs. Commander's 40 life.
- **Commander Mechanic**: No specific commander; greater deck-building flexibility.
- **Commander Damage**: Threshold of 12 damage vs. Commander's 21.
- **Scry Rule**: Introduced to balance turn order advantage in multiplayer games.

Please let me know if there are any questions or if further information is needed. Thank you for considering this proposal!