Added The Soul trinity item.

Content/DecimationPlayer.cs

@@ -70,6 +70,7 @@ namespace Decimation.Content
 
         public ICollection<int> EquippedAccessories { get; } = new List<int>();
         public bool HasShield { get; set; }
+        public bool NextHitCrit { get; set; }
 
         public Item AmuletSlotItem
         {
@@ -403,6 +404,44 @@ namespace Decimation.Content
             }
         }
 
+        public override void ModifyHitNPC(Item item, NPC target, ref int damage, ref float knockback, ref bool crit)
+        {
+            if (NextHitCrit)
+            {
+                crit = true;
+                NextHitCrit = false;
+            }
+        }
+
+        public override void ModifyHitNPCWithProj(Projectile proj, NPC target, ref int damage, ref float knockback,
+            ref bool crit,
+            ref int hitDirection)
+        {
+            if (NextHitCrit)
+            {
+                crit = true;
+                NextHitCrit = false;
+            }
+        }
+
+        public override void ModifyHitPvp(Item item, Player target, ref int damage, ref bool crit)
+        {
+            if (NextHitCrit)
+            {
+                crit = true;
+                NextHitCrit = false;
+            }
+        }
+
+        public override void ModifyHitPvpWithProj(Projectile proj, Player target, ref int damage, ref bool crit)
+        {
+            if (NextHitCrit)
+            {
+                crit = true;
+                NextHitCrit = false;
+            }
+        }
+
         public override void ModifyHitByNPC(NPC npc, ref int damage, ref bool crit)
         {
             _amuletSlotAmulet?.Synergy.OnPlayerHit(this, ref damage);

Content/Items/Accessories/Trinity/Body.cs

@@ -10,9 +10,9 @@ namespace Decimation.Content.Items.Accessories.Trinity
         protected override string ItemName => "The Body";
 
         protected override string ItemTooltip => "I feel all...\n" +
-                                                 "Increase maximum life by 50\n" +
+                                                 "Increases maximum life by 50\n" +
                                                  "You deal 10% more melee damage\n" +
-                                                 "Your melee critical hit chances are increase by 10%\n" +
+                                                 "Your melee critical hit chances are increased by 10%\n" +
                                                  "Hostile projectiles have 10% chance to ricochet off you\nand target your enemies with 50% increased damage";
 
         protected override void InitAccessory()
@@ -92,7 +92,6 @@ namespace Decimation.Content.Items.Accessories.Trinity
                 }
 
                 if (newTarget == null) return false;
-                Main.NewText(newTarget.position);
 
                 float speed = projectile.velocity.Length();
                 Vector2 velocity = newTarget.Center - projectile.Center;

Content/Items/Accessories/Trinity/Soul.cs

@@ -0,0 +1,97 @@
+using Decimation.Lib.Util;
+using Terraria;
+using Terraria.ModLoader;
+
+namespace Decimation.Content.Items.Accessories.Trinity
+{
+    public class Soul : TrinityAccessory
+    {
+        protected override string ItemName => "The Soul";
+        protected override string ItemTooltip => "I am all...\n" +
+                                                 "Increases maximum mana by 50\n" +
+                                                 "You deal 10% more magic damage\n" +
+                                                 "Your magic critical hit chances are increased by 10%\n" +
+                                                 "Your criticals hits leech mana\n" +
+                                                 "Hostile projectiles have 10% to phase through you,\nnegating all damage and causing your next attack to be a critical hit";
+
+        protected override void InitAccessory()
+        {
+            item.width = 10;
+            item.height = 16;
+            item.expert = true;
+            item.rare = Rarity.Rainbow.GetRarityValue();
+            item.value = Item.sellPrice(gold: 5);
+        }
+
+        public override void UpdateAccessory(Player player, bool hideVisual)
+        {
+            player.statManaMax2 += 50;
+            player.magicDamage *= 1.10f;
+            player.magicCrit *= (int) (player.magicCrit * 1.10f);
+
+            base.UpdateAccessory(player, hideVisual);
+        }
+    }
+
+    class SoulItemEffects : GlobalItem
+    {
+        public override void OnHitNPC(Item item, Player player, NPC target, int damage, float knockBack, bool crit)
+        {
+            if (crit && player.GetModPlayer().HasEquippedAccessory(ModContent.ItemType<Soul>()))
+            {
+                player.LeechMana(target);
+            }
+        }
+
+        public override void OnHitPvp(Item item, Player player, Player target, int damage, bool crit)
+        {
+            if (crit && player.GetModPlayer().HasEquippedAccessory(ModContent.ItemType<Soul>()))
+            {
+                player.LeechMana(target);
+            }
+        }
+    }
+
+    class SoulProjectileEffects : GlobalProjectile
+    {
+        public override void OnHitNPC(Projectile projectile, NPC target, int damage, float knockback, bool crit)
+        {
+            Player owner = Main.player[projectile.owner];
+            if (crit && owner != null && owner.active && !owner.dead &&
+                owner.GetModPlayer().HasEquippedAccessory(ModContent.ItemType<Soul>()))
+            {
+                owner.LeechMana(target);
+            }
+        }
+
+        public override void OnHitPvp(Projectile projectile, Player target, int damage, bool crit)
+        {
+            Player owner = Main.player[projectile.owner];
+            if (crit && owner != null && owner.active && !owner.dead &&
+                owner.GetModPlayer().HasEquippedAccessory(ModContent.ItemType<Soul>()))
+            {
+                owner.LeechMana(target);
+            }
+        }
+
+        public override void ModifyHitPvp(Projectile projectile, Player target, ref int damage, ref bool crit)
+        {
+            IgnoreHit(target, ref damage);
+        }
+
+        public override void ModifyHitPlayer(Projectile projectile, Player target, ref int damage, ref bool crit)
+        {
+            IgnoreHit(target, ref damage);
+        }
+
+        private void IgnoreHit(Player target, ref int damage)
+        {
+            DecimationPlayer targetModPlayer = target.GetModPlayer();
+            if (Main.rand.NextBool(10) && targetModPlayer.HasEquippedAccessory(ModContent.ItemType<Soul>()))
+            {
+                damage = 0;
+                targetModPlayer.NextHitCrit = true;
+            }
+        }
+    }
+}

Content/Items/Accessories/Trinity/TrinityAccessory.cs

@@ -1,6 +1,7 @@
 using Decimation.Lib.Items;
 using Decimation.Lib.Util;
 using Terraria;
+using Terraria.ModLoader;
 
 namespace Decimation.Content.Items.Accessories.Trinity
 {
@@ -8,7 +9,8 @@ namespace Decimation.Content.Items.Accessories.Trinity
     {
         public override bool CanEquipAccessory(Player player, int slot)
         {
-            return !player.HasEquippedAccessory(item.type);
+            return !player.HasEquippedAccessory(ModContent.ItemType<Body>()) &&
+                   !player.HasEquippedAccessory(ModContent.ItemType<Soul>());
         }
     }
 }

Lib/Util/PlayerUtils.cs

@@ -31,5 +31,17 @@ namespace Decimation.Lib.Util
         {
             return player.GetModPlayer().AmuletSlotItem.type == amuletType;
         }
+
+        public static void LeechMana(this Player player, Entity target, int minMana = 5, int maxMana = 15)
+        {
+            int manaAmount = Main.rand.Next(minMana, maxMana + 1);
+            player.ManaEffect(manaAmount);
+            Main.NewText(manaAmount);
+
+            if (target.GetType() == typeof(Player))
+            {
+                ((Player) target).ManaEffect(-manaAmount);
+            }
+        }
     }
 }