Sky Striker is getting insane support. Will it be top tier again? Likely not, but it's getting the tools it needs to survive. Zero gives Striker a definitive boss monster that is a viable option going first and second. Without the restriction of Zero needing to be Link Summoned, you can gain more traction turn one with Linkage.
Going First Combo Example 1: Engage + Linkage
Engage add Raye. Link into Kagari and add back Engage. Engage add Multirole. In End Phase, Shizuku add Widow Anchor and use it. Use Linkage to summon Zero. Zero add a card from deck to hand. Multirole set back Widow Anchor.
Going First Combo Example 2: Raye/Roze/Hornet Drones + Engage
Engage add Linkage. Summon Raye/Roze or Activate Hornet Drones, link into Kagari to add back Engage. Engage add Multirole. Link into Shizuku. In End Phase, Shizuku add Widow Anchor and use it. Linkage send Shizuku to summon Zero. Zero add a card from deck to hand. Multirole set back Widow Anchor.