This card is unaffected by Spell effects. During the End Phase, if this card destroyed a monster by battle this turn: You can send this face-up card to the Graveyard; Special Summon 1 "Horus the Black Flame Dragon LV8" from your hand or Deck.
Horus the Black Flame Dragon LV6 is only unaffected by Spell Cards while face-up on the field. You can use Level Modulation on it to Special Summon it from your Graveyard at the cost of your opponent drawing 2 cards.
Use Aroma Strategy skill along with Hazy Flame Sphynx to take advantage of its effect. By declaring the correct card type, you can Special Summon Horus the Black Flame Dragon LV6 from your deck since its attribute is FIRE.
Ultimate Providence can negate Spell, Trap or Monster effect at the cost of discarding the same card type. Since Horus the Black Flame Dragon LV6 is immune to Spell effects, you can focus on negating trap and monster effects.
Sending a LV monster in the Graveyard is a cost for Level Up! and not an effect, which means you can use it to Horus the Black Flame Dragon LV6 to Special Summon Horus the Black Flame Dragon LV8 from your hand or Deck.
You can use these cards to Special Summon/Tribute Summon Horus the Black Flame Dragon LV6 to the field. When Kidmodo Dragon is sent to the Graveyard, you can Special Summon Horus the Black Flame Dragon LV6 from your hand. You can set Totem Dragon to defend from attacks then Special Summon by its effect on your next Standby Phase and use it as a tribute for Horus the Black Flame Dragon LV6.
Use these cards to prevent or negate Trap Cards. Seven Tools of the Bandit can negate trap cards at the cost of paying 1000 Life Points. While Xing Zhen Hu and Sergeant Electro have similar effects that can disable the set Spell/Trap of your of your opponent. Mirage Dragon prevents your opponent from activating traps on Battle Phase and The Dragon's Bead can negate and destroy any traps that targets a Dragon-Type monster.
Well, this card is unaffected by Spells. SRH would do nothing if you target it to this monster since it's unaffected. The same thing for Level Up as well. Maybe it could benefit though on Enemy Controller since if you tribute-control, there would be no tribute. Same thing for Tenkabito.
if using horus lvl6 as a cost of spell card you can use those spell cards, like econ and level up
You can activate "Level Up!" and send "Horus the Black Flame Dragon LV6" to the Graveyard to Special Summon "Horus the Black Flame Dragon LV8" because sending 1 monster to the Graveyard is a cost for "Level Up!" and if a card is unaffected by Spell Cards, that only refers to effects, not to costs.