Cost: 3.
Test Icons:

Fast. Play only during your turn.

Choose one of your skills. Until the end of your turn, set the base value of that skill to 5.

You never really know what you are capable of until something is trying to eat you.
Javier Charro Martinez
In the Clutches of Chaos #281.
Trial by Fire

This card is great for most survivors, particularly those with Achilles stats like Wendy’s fight, Calvin anything or Silas intellect or willpower. Combined with Leo de Luca, quick thinking or any number of other cards can give you 4-5 turns with a giant boost stat. Also ace of rods can give you extra turn with one test at 7! Watch Wendy crush the ghoul priest, Silas Hoover up clues or laugh at an encounter 4 test. Also Ashcan Pete and Calvin can prosper plus any other char that can take the spirit trait.

Agent 51 · 12
Don't forget Preston for whom a base skill of 5 for only 3 ressources is quite a nice trade — jens.h.thomsen · 2
Rita can combo with Ace in the Hole — Zinjanthropus · 16

This is the level 1 Will to Survive. It serves a very similar function.

  • Rewrite any character's stat as a 5. This is obviously great for anybody starting at 1 or 2, note that all modifiers (boosts on weapons for example) stack on top. Calvin Wright and Preston Fairmont take note.

  • A 5 for a round is most useful if you can leverage it, upping to 5 for example is useful all the time, but upping isn't great unless you've got a weapon to swing.

  • Terrific in maps that require you to beat a specific test type on scenario cards, for example if you gotta beat x amount of tests or beat parlays.

  • Benefit lasts until end of turn, thereby it will never help you in the Mythos phase.

All in all this is a great card, mandatory in Calvin Wright and damn-near everybody else can use it for something, at the very least 5 is never useless.

While there are no XP versions of Trial by Fire there is still The Red-Gloved Man who operates VERY similarly but has loads of other advantages. There's also obviosuly Will to Survive.

Tsuruki23 · 1065
Take it with Preston alongside some Swift Reflexes, Quick Thinking, or an Ace in the Hole for some extra action shenanigans. — StyxTBeuford · 1332
The above cards comboed with a side of fight or flight and you got a stew goin'. — Myriad · 714
I... think I'd like my money back. — StyxTBeuford · 1332
This is very helpful in solo Rita for getting clues, or even fighting enemies to some extent. she can also get Ace in the Hole — Zinjanthropus · 16