Hello fellow players

I want to build, where I have a decent chance of winning some games :)
I have collected the following cards, wich I would like to use in my deck:

4 x War Priest of Thune
4 x Nearheath Pilgrim
4 x Swift Justice
4 x Moment of Heroism
4 x Silverblade Paladin
4 x Boros Reckoner
4 x Champion of the Parish
4 x Clifftop Retreat
4 x Doomed Traveler
4 x Fiend Hunter
4 x Gather the Townsfolk
4 x Harvest Pyre
4 x Hellrider
4 x Lightning Mauler
4 x Loyal Cathar
4 x Mugging
4 x Silverblade Paladin
4 x Slayers' Stronghold
4 x Boros Guildgate
4 x Cavern of Souls
4 x Homing Lightning
4 x Faith's Shield
4 x Frontline Medic
20 x Mountain
20 x Plains

I was thinking about a combo, where my Boros Reckoner were made indestructible (Boros Charm / Frontline Medic) and gained lifelink (Nearheath Pilgrim / Swift Justice / Moment of Heroism) when dameged, and then gave me infinite life by damaging it self over and over again.

Do you think I would be able to make a FNM competitive deck with these cards? Any idears for a deck and sidebord?
Or is there any cards I'm missing for this to be a FNM competitive deck?

Thank you in advance
Christian

You appear to have most of the requisite pieces to make a solid Boros Aggro build. To be honest, given that you have all the high-end stuff already, I'd suggest looking at the decklists from the recent SCG event in Edison and trying to pick out the build you can most closely emulate. I'm normally one who despises the prospect of net-decking, but if you're really just interested in being competitive, everyone else is net-decking, so you might as well go ahead and do it too.

(You can find the decklists here: http://sales.starcitygames.com//deckdatabase/deckshow.php?&t%5BC1%5D=1&start_date=2013-02-03&end_date=2013-02-10&start=1&finish=16&exp=42&city=Edison&state=NJ&country=US - note that 6th place was a Boros Aggro build)

On a side note, the infinite life combo is cool, but you really shouldn't strive to pull it off unless it just falls into your lap.