Destroy target creature with toughness 4 or greater.

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(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Surveil 3.
II — When you next cast a creature spell this turn, copy it, except the copy isn't legendary.
III — Choose a card name. Whenever a creature with the chosen name deals combat damage to a player this turn, draw a card.

Destroy target artifact, enchantment, or land.

Whenever you cast an outlaw spell, copy that spell. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws. Copies of permanent spells become tokens.)

Double strike
Whenever you cast a spell that targets a creature you control, put a +1/+1 counter on Mockingbird.

Target opponent exiles a creature or planeswalker they control with the greatest mana value among creatures and planeswalkers they control.

Haste
Whenever Thraximundar attacks, defending player sacrifices a creature of their choice.
Whenever a player sacrifices a creature, you may put a +1/+1 counter on Thraximundar.

Haste
This creature can't be blocked by creatures with power 2 or less.
Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
This creature attacks each combat if able.

Create two 1/1 blue Fish creature tokens with "This token can't be blocked." Then for each kind of counter among creatures you control, put a counter of that kind on either of those tokens.

When this Equipment enters, amass Goblins 1, then attach this Equipment to the amassed Army. (To amass Goblins 1, put a +1/+1 counter on an Army you control. It's also a Goblin. If you don't control an Army, create a 0/0 black Goblin Army creature token first.)
Equipped creature gets +1/+0 and has menace.
Equip

This artifact enters tapped.
: Add .

Draw two cards, then discard a card. You gain life equal to the number of cards you've discarded this turn.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

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Destroy target artifact or enchantment.

Amass Goblins 1. If this spell was cast from a graveyard, amass Goblins 3 instead. (To amass Goblins X, put X +1/+1 counters on an Army you control. It's also a Goblin. If you don't control an Army, create a 0/0 black Goblin Army creature token first.)
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

First strike
Whenever a creature you control attacks alone, draw a card. Then you may put a creature card with mana value 3 or less from your hand onto the battlefield. It enters tapped and attacking and gains indestructible until end of turn.

Create three 1/1 red Goblin creature tokens.