She does suffer a little from that Temur drawback of laying out your plans in advance (looking at you, Storm from the X-Men drop), but she makes up for it with very pushed stats
The attachment only ends if something explicitly unattaches the Equipment or attaches it to another permanent (such as from you activating the shackle ability again)
We want to give it card draw that feels uniquely White. Wizards has done a similar think with Red over the last few years with the impulsive draw mechanic that exiles cards that can only be cast within the next turn or two
However, they can get very busy on weekends, holidays, and special events, so there may be lines to enter
Its not easy to one-shot Pokemon and even Poke Abilities and Trainer cards have reduced effects
In all, thats what I feel the MTG Tarkir: Dragonstorm Sultai Arisen Commander Deck does best