A Tarsier
Tarsier is an 
offensive Red unit, with 
2 build time. It's part of the base set.
Panel
Strategy
Tarsier is 
red's basic attacker. It is the most efficient constant damage source from the base set, but takes 2 turns to build. Tarsier is considered the standard to measure the effectiveness of other units in gold-to-attack ratio.
In random sets containing no better attackers they should be your best source of damage. Be careful not to overvalue them though, their 2 build time is a really severe drawback. If you go for Tarsiers as your main attackers your opponent will have ample time to react: they can simply put down a Blastforge after your first 2 Tarsiers are on the way and still have their first Wall ready to absorb the damage.
Since Tarsiers have 2 build time, they are worse later in the game. They are good attackers to start with but in the mid-to-late game Rhinos may be a better use of your since they attack immediately while Tarsiers take two turns to even do anything at all.
Tarsiers must be protected from breaches at any cost, as their 
1 Health will let your opponent wipe them out very easily. That makes them a risky proposition against opponents with access to 
Chill or damage burst.
Tarsiers naturally combo as a force multiplier with the Amporilla.
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