I have a planet that has an odd pull of gravity because it’s shape is an amalgamation of large landmasses merged together, and held in place by magic forces. Aside from the fact a shape like this on a planet is hard to rationalize, it’s also difficult to imagine how you would map this planet out on a flat surface. how would you draw this on a map?
The "geophysics" tag necessitates a "frame challenge," which is a challenge to the premise of the question. If you have vaguely realistic physics in your setting, a planet that is as far from spherical as your drawings indicate can't exist.
The reason for this is simply that rock is not rigid enough for this planet to hold its shape. It will collapse, quite quickly, into a close approximation of a sphere. It won't be a perfect sphere, but it will be pretty close, as the earth is.
Earth has continents and oceans because it has two separate types of crust, called "continental" and "oceanic". Continental crust is less dense, and thus floats higher on the underlying mantle. It's all a matter of density and buoyancy: the apparent rigidity of rock on a human scale is irrelevant, because it isn't strong enough to resist the pressures within the earth, and behaves like a (pretty stiff) fluid.
The exact shape of the Earth is a bit complicated.
Its radius at the poles is about 0.3% less than at the equator, so a slightly flattened sphere is a good approximation. The reason for this distortion is that it spins quite fast, and is stretched, a little, by centrifugal force. If it were to stop rotating, it would slump back into a much more spherical form, involving a world-wide earthquake of unprecedented strength.
The earth's gravity field is not perfectly uniform, because its density doesn't increase uniformly with depth. There are some areas where gravity is a little stronger and others where it is a little weaker. The effect is far too small to notice with human senses, but is detectable with precise surveying instruments. The mathematical approximation of the earth's gravity is called the geoid.
A small enough planet will not collapse into a sphere, but that limits you to bodies too small to retain a significant atmosphere.
If you want an irregularly shaped planet, you're going to need different laws of nature, or technology advanced enough to manipulate gravity on a vast scale. When that goes wrong, the planet will slump into a sphere, destroying everything on its surface in the 'quake.