Dead Man's Chest

For each land you control, create a Treasure token. (It's an artifact with "T, Sacrifice this token: Add one mana of any color.")

Enrage — Whenever this creature is dealt damage, each opponent sacrifices a permanent of their choice.

Exile target nonland permanent. For as long as that card remains exiled, its owner may cast it without paying its mana cost.

This spell costs X less to cast, where X is the total power of creatures you control. Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) You may play an additional land on each of your turns. This creature can't attack or block unless you have the city's blessing.

Whenever another Merfolk you control enters, put a +1/+1 counter on target Merfolk you control.

Flying When Azor enters, each opponent can't cast instant or sorcery spells during that player's next turn. Whenever Azor attacks, you may pay XWUU. If you do, you gain X life and draw X cards.

Whenever Etali attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.