New combo idea for burst mage

So shield cannon from shield skills seems nifty with 100% stun rate at level 10 and its incredible range that instantly hits targets from afar, assuming that as a burst mage you already attained instant burst through equipments skill buffs and food buffs and max dex and have spare skill points for shield skills and also have a shield in bag or storage, i thought of these 2 combo for 2 different situations, from 8m distance impact burst(smite) shield cannon(save), from greater than 8m distance and closing in shield cannon impact(cons) burst(smite) finale(smite combo closer), and in between you can use mana recharge maximizer safely assuming you have mirage evasion, range is a safety factor in certain boss fights, and also for pvp if that gets released, so i thought of these 2 combos for those 2 scenarios where range should be accounted for and also the usefulness of 100% stuns that buys you plenty of time to successfully perform burst combos by interrupting targets from distances they least expect it before closing in to destroy them with the combos, what do you think of the combo ideas as a burst mage that utilizes shield cannon? and azu helped pointed out a flaw so to improve the combo for pvp, the combo can be arranged with another interrupt skill like sonic wave to ensure the combo's success in pvp, like this Shield cannon/sonic wave consecutive/maximizer consecutive/burst smite/ and a combo closer like finale smite, that way you have 3 chances of instantly interrupt the opponent before using instant cast with high magic pierce burst to defeat them, make sure to add crit as 3rd stat to ensure the combo will work so this combo is viable for burst mages at level 300+ when it is possible to max crit as 3rd stat

 

The thing is in a pvp setting, players are just going to use Shukuchi to close the distance between them and their opponent, making ranged magic irrelevant overall. Also, since the average mage would lack 100 crit rate, your Shield Cannon wouldn't always hit your target in order to stun them (Accuracy has been proven to be a useless stat unless you're really bothered by Graze hits). I do suggest Ether Flare lv10 from Magic Blade tree, it's rather quick to cast and it can 100% Burn the target to easily drain their HP

 

that is true then this combo build would only be viable for burst mages in pvp at level 300+ when it is possible to max a 3rd stat like crit right? And for shukuchi opponents.. if we assume pvp is taking place at level 300+ where mages have 100% crit rate from stats, shield cannon will stun them for 3 seconds, maximizer tumbles them if they used p def to protect themselves during the shield cannon, and burst which is instant cast will take care of them regardless of magic resistance due to magic pierce, and to ensure the combo's success in pvp sonic wave can be added to the combo, like this Shield cannon/sonic wave consecutive/maximizer consecutive/burst smite/ and a combo closer like finale smite, that way you have 3 chances of instantly interrupt the opponent before using instant cast with high magic pierce burst to defeat them