Formidable:

Since the Scorch rework this has been Fernando's go to Legendary. (Yes I call them Legendary cards, not talents, I'm an older player)

This grants massive self sustain and will easily save you from death when coupled with your shield to cleanse cauterise.

It has a 45 seconds internal cool down though so don't let it change how you really play or think too much.

Incinerate:

A considerable chunk of Fernando's damage comes from his Fireball, as it can pass through enemies; suffers no damage fall off; and has some serious range to it.

This decreases the cool down by 50% allowing you to spam it twice as often. You'll often get to use it 3-4 times in a duel before being forced to play defensive, if it ever comes to it that is.

Cavalier:

This card can work at literally any level depending on how you wish to prioritise your cards.

I personally prefer having it at level 3 and above, as this puts Fernando at 5,000+ health whilst not eating up all the loadout points.

Brand: [Still in testing.]

Theoretically the poke of 4-5 hundred healing will allow you to sustain in duels easier, effectively a 'safer' aggressive style.

Hot Pursuit:

This loadout card is effectively mandatory for a particularly aggressive or Flanknando style of play, as the 40% increase in speed allows for easy chasing, quick retreating, or other such simple re-positioning.

Due to the cards internal cool down of 10 seconds, you're most likely going to proc this speed buff every third or so Fireball. (Assuming you're spamming as soon as possible and never missing)

Immovable Object:

This card is most ideal at level 4 or 5, but can be used at lower levels as a filler if need be.

This card is best for styles that involve remaining in your healer's healing range, or that involve a more cautious approach due to high damage output from the enemies.

If you can block the enemy team's damage for 1.5 seconds with your shield, this card allows your team's healer to very quickly heal you back up if you're below 50%.

Last Stand:

It's just a little bit of self sustain to help you when your in a pinch.

It has no internal cool down and as such can be used whenever, though it is entirely shield dependant, rendering it almost useless in the face of strong wrecker.

Heat Transfer:

There's never any need to have this card above level 2.

At level 1 it allows you to reduce your Charge's cool down by up to 4 seconds. This won't let you spam the ability, but it'll certainly reduce it enough to increase your chances of having Charge off cool down in time to escape.

Launch:

It's just a comfortable increase in the distance Charge can go.

Useful for easier chasing and escaping, less useful if you prefer Charge for just short, yet quick, re-positioning.

Safe Travel:

Safe Travel requires a couple more points to be as effective as the other filler cards, but it's usefulness is undeniable.

It allows for a slightly safer initiation with Charge, and then allows you a margin more room for error in your Charge's use for escape.

Cauterise:

This is Fernando's best item.

His flamethrower allows you to effortlessly cover an entire area in cauterise afflicting flames, and since the damage over time affect can also apply cauterise, you're able to extend it's duration by a further 2 seconds.

Do not get any other items before this has been maxed out.

If need be a second item can be purchased once this has reached level 2.

Rejuvenate:

Due to gow big of a target

Resilience:

Only get this if your getting hit by lots of CC (Obviously)

Typically a 2nd or 3rd item.

Illuminate:

Only get this if the enemy team has a seriously aggressive Skye that either won't leave your support alone, or is foolish enough to keep getting real close to you.

Typically a 2nd or 3rd item.

Wrecker:

Due to Fernando's damage being comprised of lots of smaller ticks rather than big chunks, wrecker isn't his best item. Only get this if the enemy Torvold is spamming his bubble shield onto his teammates.

Typically a 3rd or 4th item.

Bulldozer:

This should only be considered if the enemy team is running some combination of Ying, Grohk, Barik and Inara. Where your team lacks any form of blaster capable of carpet bombing, whilst at the same time not buying bulldozer to compensate.

Typically a 3rd or 4th item.