diff --git a/lua/variables.lua b/lua/variables.lua
index 7fea84e..0eee5f8 100644
--- a/lua/variables.lua
+++ b/lua/variables.lua
@@ -461,12 +461,12 @@ EXPLODING_ARMOR_DMG_ADDON                = 40
 EXPLODING_ARMOR_MAX_RADIUS               = 200
 EXPLODING_ARMOR_DELAY                    = 1
 EXPLODING_ARMOR_DETECTION                = 32
-MIRV_INITIAL_DAMAGE                      = 40
-MIRV_ADDON_DAMAGE                        = 7
-MIRV_INITIAL_RADIUS                      = 80
-MIRV_ADDON_RADIUS                        = 2
+MIRV_INITIAL_DAMAGE                      = 50
+MIRV_ADDON_DAMAGE                        = 10
+MIRV_INITIAL_RADIUS                      = 100
+MIRV_ADDON_RADIUS                        = 2.5
 MIRV_DELAY                               = 0.5
-MIRV_COST                                = 35
+MIRV_COST                                = 15
 SPIKER_INITIAL_HEALTH                    = 100
 SPIKER_ADDON_HEALTH                      = 50
 SPIKER_INITIAL_DAMAGE                    = 50
@@ -1040,7 +1040,7 @@ PROXY_ADDON_HEALTH                       = 30
 NAPALM_MAX_COUNT                         = 3
 NAPALM_ATTACK_DELAY                      = 1.0
 NAPALM_DELAY                             = 1.0
-NAPALM_COST                              = 25
+NAPALM_COST                              = 20
 NAPALM_DURATION                          = 10.0
 NAPALM_INITIAL_DMG                       = 100
 NAPALM_ADDON_DMG                         = 20
@@ -1099,7 +1099,7 @@ CALTROPS_DELAY                           = 0.2
 CALTROPS_MAX_COUNT                       = 10
 
 
-SPIKEGRENADE_COST                        = 25
+SPIKEGRENADE_COST                        = 20
 SPIKEGRENADE_DELAY                       = 1.0
 SPIKEGRENADE_DURATION                    = 10.0
 SPIKEGRENADE_INITIAL_DAMAGE              = 50
diff --git a/src/combat/abilities/mirv.c b/src/combat/abilities/mirv.c
index 3b8d0e6..fcd0cc7 100644
--- a/src/combat/abilities/mirv.c
+++ b/src/combat/abilities/mirv.c
@@ -152,6 +152,11 @@ void Cmd_TossMirv (edict_t *ent)
 
     if (!V_CanUseAbilities(ent, MIRV, MIRV_COST, true))
         return;
+    if (ent->client->pers.inventory[grenade_index] < 1)
+    {
+        safe_cprintf(ent, PRINT_HIGH, "You need at least 1 grenade to use this ability.\n");
+        return;
+    }
 
     damage = MIRV_INITIAL_DAMAGE + MIRV_ADDON_DAMAGE * ent->myskills.abilities[MIRV].current_level;
     radius = MIRV_INITIAL_RADIUS + MIRV_ADDON_RADIUS * ent->myskills.abilities[MIRV].current_level;
@@ -165,4 +170,5 @@ void Cmd_TossMirv (edict_t *ent)
 
     ent->client->ability_delay = level.time + MIRV_DELAY;
     ent->client->pers.inventory[power_cube_index] -= cost;
+    ent->client->pers.inventory[grenade_index]--;
 }
\ No newline at end of file
diff --git a/src/combat/abilities/napalm.c b/src/combat/abilities/napalm.c
index 3b15ef9..847e198 100644
--- a/src/combat/abilities/napalm.c
+++ b/src/combat/abilities/napalm.c
@@ -251,6 +251,12 @@ void Cmd_Napalm_f (edict_t *ent)
 	if (!G_CanUseAbilities(ent, ent->myskills.abilities[NAPALM].current_level, cost))
 		return;
 
+	if (ent->client->pers.inventory[grenade_index] < 1)
+	{
+		safe_cprintf(ent, PRINT_HIGH, "You need at least 1 grenade to use this ability.\n");
+		return;
+	}
+
 	if (ent->num_napalm >= NAPALM_MAX_COUNT)
 	{
 		safe_cprintf(ent, PRINT_HIGH, "Can't throw any more napalm grenades.\n");
@@ -269,5 +275,6 @@ void Cmd_Napalm_f (edict_t *ent)
 	fire_napalm(ent, start, forward, damage, burn_dmg, 400, NAPALM_DURATION, radius);
 
 	ent->client->pers.inventory[power_cube_index] -= cost;
+	ent->client->pers.inventory[grenade_index]--;
 	ent->client->ability_delay = level.time + NAPALM_DELAY;
 }
\ No newline at end of file
diff --git a/src/combat/abilities/spikegrenade.c b/src/combat/abilities/spikegrenade.c
index 04a646e..e0a191b 100644
--- a/src/combat/abilities/spikegrenade.c
+++ b/src/combat/abilities/spikegrenade.c
@@ -183,9 +183,9 @@ void ThrowSpikeGrenade (edict_t *self, vec3_t start, vec3_t forward, int slevel,
 
 	VectorCopy(start, grenade->s.origin);
 	grenade->movetype = MOVETYPE_BOUNCE;
-	grenade->health = grenade->max_health = 100;//4.4
-	grenade->takedamage = DAMAGE_AIM;//4.4
-	grenade->die = spikegren_die;//4.4
+	//grenade->health = grenade->max_health = 100 + 25 * slevel;//4.4
+	//grenade->takedamage = DAMAGE_AIM;//4.4
+	//grenade->die = spikegren_die;//4.4
 	grenade->owner = self;
 	grenade->monsterinfo.level = slevel;
 	grenade->mtype = M_SPIKE_GRENADE;
@@ -222,6 +222,12 @@ void Cmd_SpikeGrenade_f (edict_t *ent)
 	if (!V_CanUseAbilities(ent, SPIKE_GRENADE, cost, true))
 		return;
 
+	if (ent->client->pers.inventory[grenade_index] < 1)
+	{
+		safe_cprintf(ent, PRINT_HIGH, "You need at least 1 grenade to use this ability.\n");
+		return;
+	}
+
 	VectorCopy(ent->s.origin, start);
 	start[2] += ent->viewheight - 8;
 	AngleVectors(ent->client->v_angle, forward, NULL, NULL);
@@ -234,5 +240,6 @@ void Cmd_SpikeGrenade_f (edict_t *ent)
 	ThrowSpikeGrenade(ent, start, forward, ent->myskills.abilities[SPIKE_GRENADE].current_level, SPIKEGRENADE_DURATION);
 
 	ent->client->pers.inventory[power_cube_index] -= cost;
+	ent->client->pers.inventory[grenade_index]--;
 	ent->client->ability_delay = level.time + SPIKEGRENADE_DELAY;
 }
\ No newline at end of file
diff --git a/src/combat/common/g_combat.c b/src/combat/common/g_combat.c
index d75f913..5433e64 100644
--- a/src/combat/common/g_combat.c
+++ b/src/combat/common/g_combat.c
@@ -824,7 +824,8 @@ int T_Damage (edict_t *targ, edict_t *inflictor, edict_t *attacker,
 	if (!targ->inuse)
 		return 0;
 
-//	gi.dprintf("original damage: %d target: %s (%.1f)\n", damage, targ->classname, level.time);
+	//gi.dprintf("original damage: %d target: %s (%.1f)\n", damage, targ->classname, level.time);
+
 	before_sub = damage = G_AddDamage(targ, inflictor, attacker, point, damage, dflags, mod);
 
 	//4.1 some abilities that increase damage are seperate from all the others.