Oh no, it does. You will bleed in the making of that tattoo and in that moment you two are bound forever. Period. Blood means a lot in these practices and your blood is enough to supercharge and activate that sigil.
So no, it is not just a tattoo. Moreover, it’s a sigil which carries the energies of that spirit + the power of those who have used it before you. Now add on your blood and the ancestral power and divine energy (because we are made of stardust); you have a lot happening right there.