Characters:
Guts - Zurgo, chose this cause it represents Guts in the Berserker Armor going into a rage and not being able to control himself. The low toughness but high power of Zurgo is akin to the high risk high reward of the Armor.
Casca - Syr Gywn, chose her because the art looks like Casca during the Golden Age Arc going into battle.
Griffith - Jor Kadeem, chose him because he looks like Griffith with the long hair and very beautiful face.
Femto - Tariel, chose this because the mask and wings remind me of Femto and the addition of Black to Jor Kadeems White mirrors Griffiths change to evil.
Flora - Mother of Runes, art reminds me of Flora sitting in her home.
Shierke - Giver of Runes, the ability to protect others and the flavour text protecting friends suits Shierke. The fact that she is a younger version of Mother fits into the Master/Student relationship of Flora and Shierke.
Puc - Rankle, the mischievious nature of Puc and his light hearted antics fits the Master of Pranks.
Isidro - Arni, boastful, proud, works best beside a stronger fighter.
Azan - Huang Zhong, old warrior who held his ground against greater odds.
Serpico - Taranika, protector of Farnese.
Farnese - Thaila, ex-member of the church who is now a heretic against the church
Skull Knight - Kulrath Knight, art is a Skeleton Knight.
Godot - Sram, master of forging weapons and a small old badass man.
Guts Rage - Immolating Souleater, evil dog.
Snake Baron - Josu Vess, looks exactly like him and commands an army of monsters.
Mozus - Both Mikaeus, White one represents Mozus before becoming an Apostle and the Black one represents Mozus after becoming an Apostle.
King & Queen of Fodlan - Darien & Marchesa.
Griffith Torturer - Palace Jailer.
Zodd - Godo & Leshrac, Godo represents Zodd during Golden Age when he throws Guts his sword when Guts was fighting Boscogne. Leshrac represents Zodds Apostle form art wise.
Band of the Falcon - Hanweir Garrison & Hanweir Writhing Township, Garrisom represents the non-apostles in the Band while Township represents the apostles in the Band.
Sonia - Hanweir Militia Captain, represents the nice side of Sonia, th flip represents her darker side.
Grunbeld - Jareth & Malfegor, Jareth represnets his human form art wise, giant with a massive shield, while Malfegor represents his Apostle form, giant demon dragon.
Locus - Cavalier of Dawn, Master Lancer.
Irvine - Kelsien, Master Archer.
Rakshas - Dark Impostor, the ability and being an assassin mimics Rakshas.
Void - Greel, art looks like Void.
Slan - Gisela, pink haired girl with tentackes.
Ubik - Cao Cao, Ubik is a deciver and manipulator like Cao Cao.
Conrad - Phage, Conrad is a master of plagues.
Events:
Dragonslayer Reforged by Godot - Fires of Invention, art is an old dwarf forging a weapon, the downside of not being able to cast in opponents turn helps represent the strain it took on Godot.
Golden Age Eclipse - Bad Moon, Art shows an army of monsters with a person in the foreground, this is similar to when Griffith triggered the Eclipse and was on his knees.
Aftermath of GA - Blasphemous Act, the scene of the Knights overlooking the corpses that were left after the Eclipse.
Incarnation Ceremony - Doom Foretold, shows a castle falling, similar to the Tower of Conviction falling.
IC Aftermath - Fortunate Few, few survived the IC.
Egg of the Perfect World - Dingus Egg, the flavour text of a world being born is similar to how the Egg brings about a new world.
Hill of Swords - Dead of Winter, Guts and Zodd fight on a snow covered hill with swords acting as gravestones.
God Hand Golden Age - Extinguish All Hope, represents the God Hand showing themselves to Griffith for the first time and removing any hope for the remaining Band of Hawk.
Griffith Torture - Tortured Existence.
Golden Age Band of Hawk - Outlaw's Merriment, the happy and easy going nature of the art showing a happy looking group.
God Hand Enter the World - Primeval's Glorious Rebirth, represents the Great Roar of the Astral World giving the God Hand physical forms.
Schierke Astral Projection - Reforge the Soul, represents when Schierke saved Guts soul from being consumed by rage.
Conviction Arc Great Goat Cult - Westvale Abbey, represents how underneath a religious stronghold was a cult devoted to hedonism that spawned an Apostle.
Items:
Behelit of the King - Gem of Becoming, art wise it looks like the Behelit and flavour wise it's importance to Bolas is similar to it's importance to Griffith.
Dragonslayer - Blackblade Reforged, represents how the Dragonslayer was reforged by Godot and the MTG flavour of it being used to kill dragons and being steepednin magic fits.
Serpicos' Sylph Sword and Cloak - Whispersilk Cloak and Sword of the Animist, the ability of thr cloak protection Serpico fits with the abilities of the Cloak and both swords being Elven fits really well.
Beherit Sword - Worldslayer, the Beherit Sword cause the Great Roar of the Astral World, similar to how Worldslayer destroys the board.
Isidros Salamander Daggers - Umezawas Jitte, the versatility of Jitte mirrors the quick thinking of Isidro.
Zodds Sword Given to Guts - Hero's Blade.
Berserker Armor - Assault Suit & Embercleave & Lightning Greaves. The ability of Assault Suit mirrors the Armors nature of attacking everything. Embercleave mirrors the speed and ferocity of the Armors attacks. Lighting Greaves represents the speed of the Armor.
Non-Refrences:
Chaos Warp & Generous Gift as extra removal.
Painful Truths & Mask of Memory as extra card draw.
Mana Rocks and much needed ramp.