This Kiria combines Sallya discard effect with a more restrictive Shalla draw effect. As MC, this card is quite useless except for 1 purpose: keep 1 cost Mirage Sallya (not revealed yet) on the field so you can more easily classchange into 4 Cost Sallya, whose discard effect is obviously superior to Kiria's. So her first effect is useless...
That being said, this tactic requires you to have an extra Sallya in your hand in order to activate Sallya's effect (flip 3 bond, discard Sallya: Opponent discards 3 cards). In case you don't, are you willing to use Kiria's second effect and discard herself (which is a potential dodge for your MC) for a small chance of drawing into Sallya? Probably not... So her second effect is uselss... (Yes, you can discard Sallya for a small chance to draw into a Kiria as well, but if you have that many Sallyas in hand, you're playing the deck wrong....)
It ultimately comes down to what the effects of the 1 cost Mirage Sallya are, but 1 good thing about this card is that you have to potential to discard 5 cards from you opponent's hand in 1 turn, due to Sallya's effect restricted to once per turn, you can opt to activate both Sallya and Kiria's effects. This requires 6 face-up bond, and minus 2 from your own hand.
tl;dr - if you MC Kiria with this card, it's pretty much a useless card; just use Sallya's effect instead. Has potential to discard 5 cards from opponents hand in 1 turn.
This is just based on what's revealed. We know the Starter deck will come with 3 cost Kiria, so maybe that one would better.