The face on this Beyblade depicts a Bull, which is represented by Taurus in the Zodiac symbols. It's coloring is slightly different from its Metal Fight counterpart,Bull. It does not have a printed or tattooed face bolt,
Bull is currently the second heaviest Clear Wheel/Energy Ring available and also perfectly balanced, making it very popular and Top tier in Stamina and Defense Combo's. This Energy Ring is slanted and can cause good attacks.
Dark has twelve spikes facing the clockwise direction. These protrusions are closely packed together with minimal space between each, resulting in an overall round shape. This shape hinders the Metal Wheel in two ways, as its protrusions are not pronounced enough to provide sufficient Smash Attack, while the perimeter is interrupted too frequently for sufficient Stamina. Still, Dark shows some decent defense and can be used competitively (to a small extent) this way but Twisted(Basalt) & Earth both outclass it.
This shows the original mold of H145, but it showed breakage problems, so the gaps were reinforced. It can be used in Attack and Defense combos, however it is best in both due to recoil, and also floor scrapes. Also, if launched incorrectly, H145 will cause the Bey to bounce around the stadium in an automatic spin out. However, with practice this Track could be used to knock other Beys out of the stadium. This track is made to "grab" the opponent's Beyblade when they strike the track, but that rarely ever happens at all. H145 is outclassed by BD145, GB145, 230, etc, but it is great for smash attacks. Overall, H145 is a track that has no real use and makes the Bey lose spin when slowing down.
Semi Defense is not able to wobble as much as Defense, so for Defensive purposes, Defense should still be chosen over Semi Defense if you are trying to add some Stamina to your Defense custom. With that said, Wide Defense would be a better choice than Defense for that situation, and also arguably for Stamina as well because with the even wider Tip. However, Eternal Wide Defense, has more Stamina than Wide Defense. With Wide Defense, it is allowed to circle the stadium in some situations when it is on a larger angle towards the end of a battle, thus outspinning Defense or Semi Defense based opponents. However, sometimes this does not happen, and Semi Defense easily knocks over the wobbling Wide Defense custom before it topples over itself.
It comes down to personal preference when deciding whether to use Semi Defense or Wide Defense, because they are so closely matched. For pure Stamina it impossible to tell which would win a given match, but Wide Defense would prepare you for more situations by being able to take hits better than Semi Defense. Test both and decide for yourself which one works best for what you are trying to do. Depending on whether you are willing to sacrifice some Defense but for no more Stamina.