In case you missed it, Aryel's access to the Vigilance keyword allows her to attack, play defense, and also make use of her activated abilities each and every turn
Hopefully you are putting at least one damage counter on their Pokmon during the whole sleeping process, and this damage can be used later to add the sleeping effect of Darkrai Gs Darkness Sleep attack, or leave Pokmon vulnerable to a sniping KO by Drapion LV
because these cards are no longer being produced and there is only limited supply in the world, prices are very likely to stay high and increase over time
There are 3 ways to obtain a Card Game ID
This will have a slant towards Commander/EDH, as that is my usual focus
During your Main Phase, you can Normal Summon 1 Fiend monster with 0 ATK/DEF in addition to your Normal Summon/Set