Two.
Assuming the monster doesn't have any special text which explains how to summon it, then a 10 star monster just requires two tributes, because Lv7+ monsters need two. The Earthbound Immortals and Andro Sphinx/Sphinx Teleia are Lv10 monsters that are tribute summoned as normal with just two tributes.
2
Unless they are monsters that are special summon only, level 7+ monsters require 2 tributes.
As per the basic rulebook, you need two tributes for monsters of Lv7+. Some high level monsters have rules text to say they require three tributes, but these are exceptions. In the case of monsters like Yubel (Lv10) they still only require two tributes.
Two.
There are seven. Ccapac Apu (Giant) in Raging Battle Aslla Piscu (Hummingbird) in Raging Battle Cusillu (Monkey) in Ancient Prophecy Chacu Challhua (Orca) in Ancient Prophecy Ccarayhua (Lizard) in Stardust Overdrive Uru (Spider) in Stardust Overdrive Wiraqocha Rasca (Condor) in Stardust Overdrive
Assuming the monster doesn't have any special text which explains how to summon it, then a 10 star monster just requires two tributes, because Lv7+ monsters need two. The Earthbound Immortals and Andro Sphinx/Sphinx Teleia are Lv10 monsters that are tribute summoned as normal with just two tributes.
2
Unless they are monsters that are special summon only, level 7+ monsters require 2 tributes.
The Supremacy Sun is a Lv10 monster so requires 2 tributes.
As per the basic rulebook, you need two tributes for monsters of Lv7+. Some high level monsters have rules text to say they require three tributes, but these are exceptions. In the case of monsters like Yubel (Lv10) they still only require two tributes.
You need one tribute for a Lv5 or 6 monster, and two tributes for Lv7+, though many higher level monsters have additional or different requirements.
In the Yu-Gi-Oh rule book it states that an 8 star monster only needs 2 tributes.
it 's simple 5,6 one tribute 7+ two tributes. As well, because the only two cards that are twelve star that do not go into your extra deck are Yubel: The Ultimate Nightmare and Obelisk the Tormentor (Legal Version), only Obelisk requires three tributes.
3 rivers and the tributes are get of the computer and think about it
You need to tribute one monster for the tribute summon of a Lv5 or 6 monster, and two tributes for any that are Lv7 or higher, even Lv10 ones like Yubel. Additionally, some monsters require three tributes (Obelisk the Tormentor, for example), but that is stated on the card, and it not related to the level.