Summon weapons

Minions are summonable creatures that will fight for you (unlike pets). Minions as well as pets will follow the player, can pass through blocks when trying to catch up with player (but cannot while running around), cannot be damaged or killed, and last indefinitely until their buff is cancelled.

Minions can detect enemies before the player can see them on the screen, alerting you to incoming enemies. This can be useful when building and digging.

By default, players can summon only one minion. The maximum amount of active minions that currently can be achieved with all equipment bonuses is eight. Minions can be combined. You are still only able to have one summoned light source and only one pet active at any time, regardless of the amount active minions you have.

Frost Hydra is a notable exception since it cannot move at all, will disappear after a certain amount of time, and does not count towards the minion cap, while it still has summon damage type.

Armor
The following armor sets specifically affect Minions:

Accessories
The following accessories specifically affect Minions:

Minion DPS
You can use the following tables to determine the net damage per second of minions when wearing a full set of Tiki Armor, Spooky Armor, or regular armor, and equipped with any combination of accessories which specifically increase the damage or capacity of minions. It should be noted that these tables are most accurate when not using items which increase magic damage, including overall damage, but can still be used to gain a general understanding of the net damage output.

The following information is used to properly read and use these tables. Going down the leftmost column are the possible damage bonuses that can be obtained by equipping one or more of the relevant accessories. The percentages in this column are the combined bonus of any equipped accessory, with a maximum of +40% Minion Damage. Across the top of the table are the possible number of minions which can be summoned at once, with the total number of minions increased by accessories in parenthesis. The values in the table itself are represented as percentages which indicate the net minion damage. (i.e. 100% is normal, 200% is double, etc.) If there is an "N/A" in a cell, then it is not possible to obtain that specific combination of bonuses from accessories and is therefore not relevant.