Weight: 4.2g
Left Spin:
Small size and rounded leading edges work extremely well for Spin Stealing and Defense, better than Tiger Defenser in this direction, and one of the best overall, though not as good as Twin Horn or Twin Horn (Hasbro).
Elevated outer part means some Attack types can catch underneath it like a Sub-AR compatible AR (eg Twin Horn (Hasbro)) to deliver devastating hits, though as the front is blocked this is very uncommon, and the AR is still great for Defense.
Competitive choice for all Left Spin Defense and Stamina combinations as well as Left Spin Compacts.
Right Spin:
Aggressive, but prone to fairly heavy recoil thanks to its contact point angle, far more than its moderate Smash is worth
Very limited range hinders offensive potential
Recoil prevents use with Compacts, Defense and Survival
Not competitive in this direction.
Beyblades including this part:
Weight: 15.0g
Decent weight, with a compact yet edge-focussed distribution which makes for good all-around performance.
Thanks to the additional weight, the weight distribution provides a good mix of RPM maintenance/grinding and overall survival ability.
Generally outclassed by Wide Defense unless a more compact weight distribution is required. This is most noticeable in Compacts and Semi-Flat Base Stamina, where the compact weight distribution helps their stability and grinding ability while providing a little extra survival over mode compact options. However for compacts, the greater weight of Ten Heavy is generally preferred.
Overall a good part.
SonoKong G-Blade Mold (as opposed to their earlier mold) is generally very similar to the regular mold, meaning it can be used interchangeably.
Spin Gear: Neo Right Spin Gear (South Magne Version)
Weight: 1.15g ea (total 2.3g)
Generally preferred to regular Right shells due to being compatible with all SG-Compatible bases, in particular for being compatible with Neo SG Cores and the Heavy Metal Core.
This means they are a necessity for Compacts, Weight Based Defense, Force Smash, Traditional Upper Attack and Driger V2 Combinations, at least aside from the rare occasions Left Spin is desired for one of these types, in which case Neo Left Shells are preferred.
Overall a crucial competitive part, but thankfully exceedingly common.
Note: When used in an SG, any Magnecore is listed as "Magne Version" with no specification of the polarity or variety. These are listed in PlasticsDB part section names for clarity.
Weight: 3.3g
Only compatible with Neo Right Spin Gear Shells and Neo Left Spin Gear Shells.
Main attribute is its specific weight, resulting in a distribution not as centrally-focused as a Heavy Metal Core, yet with enough weight to help a little with recoil, Magnecores tend to be a decent choice if trying to control recoil on Attack types which care about stamina such as those using SG Metal Flat Base (Gaia Dragoon V Version). They usually tend to be a slightly better balance here than Metal Weight Core as the extra weight does not cause losses against any notable opponents but does provide slightly better rotational recoil control, while providing better stamina and faster movement than a Heavy Metal Core.
Only noticeable effect of the magnetic gimmick for regular play is when using a magnetized tip (Customize Grip Base Tip, Magne Flat Base Tip), which are attracted to South Magnecores, or Magne Weight Disk (which can be flipped over as needed anyway), and even here the effect on performance is negligible - the only actual impact is in terms of assembly difficulty.
Defensively, and for rotational recoil control, it is outclassed by the significantly heavier Heavy Metal Core, however it is the next best thing, and still works okay for Defense/Compacts, albeit not nearly as well as an HMC due to the significant difference in weight. It has some use on Driger V2 combos for certain outspins, but generally an HMC is superior, and always preferred when using Wide Defense.
In Magne Stadia, South Magnecores are intended to be offensive (by being repelled by magnets, thus moving around erratically).
Weight: 4.4g
SG version of Flat Base
Shortest base in plastics, which can make it an okay choice for Traditional Upper Attack.
Tip shape and material reduce effectiveness as it struggles to flower pattern effectively as well as having limited recoil control and average stamina.
Acceptable LAD which can be useful.
Outclassed by rubber and metal attack tips, but could be a fallback option for Attack.
Can be used for Compacts, but again is heavily outclassed.
Last use is similar to Flat Base in setups similar to Semi-Flat Base Stamina, primarily using Wide Defense and a Compact or smaller-sized Defensive AR, with SG choice depending on the desired effect. This can allow outspins or KOs against less competitive opponents.
In these setups, SG Flat Base has slightly poorer LAD than Flat Base, but has the ability to customize the SG, including use of Left Spin, though the lack of Left Spin Compact ARs with any real offensive ability does cause some issues here.
Overall
With a very good if spin-direction-limited Attack Ring, a decently useful Weight Disk and SG, and somewhat passable uncustomized performance, Metal Dranzer is a good buy especially as it usually isn't that expensive (especially when used), but the amount of other Attack Rings that serve the same purpose as Metal Dranzer's only unique part means it is not a must have.