Need tips for vania+vastle deck combo

[Nexterday]

as the title suggest, i need tips and suggestions for my aggro forest bat deck.
so far the only way to win for me is to use 3 razory claws and demonic strike in 1 turn, which is ♥♥♥♥♥.

[Unauthorized Use of Force]

https://shadowverse-portal.com/deck/1.6.63dOW.63dOW.63dOW.63fr4.63fr4.67UiU.67UiU.63dOg.63dOg.63dOg.67WPs.67WPs.67WPs.5_p-4.5_p-4.5_p-4.63e74.63e74.63e74.67WfK.67WfK.67WfK.63dO-.63dO-.63dO-.67RXC.67RXC.67RXC.63gZA.63gZA.63gZA.659nE.659nE.659nE.5_pFW.5_pFW.5_sQA.5_sQA.63fqw.63fqw#