See here these two comparisons based on the power of Arcueid and ther status before of Tsukihime (when part of his power was stolen by Roa when it became in a Dead Apostle), and when Melty Blood started (when Arcueid recovered all its original total power and Wallachia manifested in his form as Red Arcueid and having managed to reproduce a maximum of 30% of all the power that she has), and without the support of the Counter Force of Gaia.
1st comparison: The power of Arcueid Brunestud when she was repressing their vampiric impulses by using 70% of all their power to stop them without the support of the Counter Force of planet Earth, and still had part of his power stolen by Roa before of the events of Tsukihime compared with the Heroic Spirits as Servants in Fate Series:
7,5% - The power of one Servant;
10%- The power of one Servant and more than a third;
20%- The power of 2 Servants and more than two-thirds;
30%- The power of 4 Servants;
40%- The power of 5 Servants and more than a third;
50%- The power of 6 Servants and more than two-thirds;
60%- The power of 8 Servants;
70%- The power of 9 Servants and more than a third;
80%- The power of 10 Servants and more than two-thirds;
90%- The power of 12 Servants;
100%- The power of 13 Servants and more than a third;
2nd comparison: The power of Arcueid Brunestud when she was repressing their vampiric impulses by using only 53.9% of all their power to stop them without the support of the Counter Force of planet Earth, and having regained the part of its power that was stolen by Roa after the events of Tsukihime and the beginning of those events seen in Kagetsy Tohya and Melty Blood compared with the Heroic Spirits as Servants in Fate Series:
7,5% (5.8%) - The power of one Servant;
10%(7.7%) - The power of one Servant and more than a third;
20%(15.4%) - The power of 2 Servants and more than two-thirds;
30%(23.1%) - The power of 4 Servants;
40%(30.8%) - The power of 5 Servants and more than a third;
50%(38.5%) - The power of 6 Servants and more than two-thirds;
60%(46.2%) - The power of 8 Servants;
70%(53.9%) - The power of 9 Servants and more than a third;
80%(61.6%) - The power of 10 Servants and more than two-thirds;
90%(69.3%) - The power of 12 Servants;
100%(77%) - The power of 13 Servants and more than a third;
110%(84.7%) - The power of 14 Servants and more than two-thirds;
120%(92.3%) - The power of 16 Servants;
130%(100%) - The power of 17 Servants and more than a third;
Theadditional 30% that I added in the second comparison is precisely thepart of the power that Michael Roa Valdamjong stole of Arcueid beforeof the events of Tsukihime start (what he used to be able to incarnate with his Reincarnation Magecraft), and returned for her when Tohno Shiki killed him. Thus, these 130% are currently their 100% of all its power without the support of the Counter Force of planet Earth.
In Melty Blood, when Night of Wallachia/TATARI manifested in the form of Red Arcueid before he was defeated in its original form as Zepia Eltnam Oberon when the real Arcueid appeared to materialize the Crimson Moon of 1,000 years from the future to materialize TATARI back to Zepia so he could be killed at the hands of Sion Eltnam Atlasia and Shiki, he had managed to reproduce at most about 30% of all the unlimited potential of the total power that the body of Arcueid currently has, which is the power it had originally before of Roa steal a part of this power when he tricked her to drink his blood and transformed it into a Dead Apostle 800 years ago, and she fully recovered this part when Shiki killed him with his Mystic Eyes ofDeath Perception at the end of Tsukihime before of the events ofMelty Blood begin.
Which means that these "30%" that Wallachia could reproduce with TATARI to take the form of Arcueid are also precisely those "30%"that represent all the "100%" of maximum power that Wallachia possess as TATARI and as Dead Apostle. With this as a basis, Wallachia is about the power of about more than 5 servants, so putting it almost the same maximum power level that Gilgamesh has in its form as Servant. When Wallachia manifested as Nrvnqsr Chaos in Melty Blood, it commented that the potential of Nrvnqsr exceeds the one he had as Dead Apostle and so I think Nrvnqsr has a maximum power of 6 servants at least. In the case of Roa, as he had stolen about 23.1% of the original full power that Arcueid has so he could reincarnate all the time he was killed and his power as Dead Apostle, he has at least the power of 4 Servants. In the case of Dust of Osiris, the successor of Walalchia as TATARI and as Dead Apostle, believe she has the power of more than 6 Servants or a maximum power of 7 Servants because she had lived about 1,000 years of its the original timeline before reaching the timeline of Melty Blood when Wallachia was killed.
Thus, the current Arcueid need use only about 23.1% of its total power to be able to power to a level of 4 servants together, and it needs to use only 11.55% of its power for it to be considered a weapon Anti-Servant. Using 40% of all his power, it might have a chance to fight in a balanced manner against Gilgamesh, although still it would disadvantage due to the Gate of Babylon that he has, and the limitation that it must increase its strength against a single opponent with suport of Counter Force of Gaia.
Now tell me what you think about it.