Moreover, while attempting to refine [Obelisk the Tormentor], he had also been researching [The Winged Dragon of Ra] in parallel. By late March, his research into [Obelisk the Tormentor] had finally entered its final stage. His research into [The Winged Dragon of Ra] had also finally achieved a breakthrough.
There existed a synergy known as the [Three Egyptian Gods] between [Obelisk the Tormentor], [The Winged Dragon of Ra], and [Slifer the Sky Dragon].
When they descended simultaneously, they would produce the extremely terrifying [Field-Wide Silence] effect. All magic, rituals, and item effects other than those of the [Three Egyptian Gods] would be unable to activate. The [Field-Wide Silence] effect could last for a full thirty seconds.
In other words, unless they were Magic Spirits specialized in close combat, they could only passively take a beating before the [Three Egyptian Gods]. This effect was overwhelmingly suppressive.
Its sole flaw was that it was difficult to achieve.
[Slifer the Sky Dragon] was a fifteen-star [God Card], and the other two [Three Egyptian Gods] were likewise fifteen-star.
Summoning a fifteen-star card was already no easy task, let alone summoning all three.
Thus, conventional Tribute Summons were no longer applicable in this situation.
To make the [Three Egyptian Gods] descend at the same time, the best method was to use the [Heaven Summoning Technique] to summon twelve-star versions of the [Three Egyptian Gods]. Reducing them from fifteen stars to twelve would lower the three core attributes of the [Three Egyptian Gods] accordingly, but would not greatly diminish their rank. [Field-Wide Silence] would still remain effective.
The research into the [Heaven Summoning Technique] had now reached only its final stage—summoning a [God]. Once that research succeeded, the task would be complete.
Before that, however, he still had to transform all of the [Three Egyptian Gods]