So, with your five artifacts, the spell's cost goes down by 1 for each artifact
Delete 1 of your chosen Digimon and 1 of your opponent's Digimon with as high or lower a level as that Digimon
However, at the very least, this allows it to keep attacking consistently with its most powerful Move each turn rather than having to wait it out
Lower Text - Promo Info EXTRA BOOSTER DIGIMON LIBERATOR [EX-07] CLOSECLOSE EX7-031 R Digimon Lv.3 Pteromon Color Green Form Rookie Attribute Data Type Bird Dragon/LIBERATOR DP 1000 Cost 3 Digivolve Cost 1 0 from Lv.2 Digivolve Cost 2 - Upper Text [Your Turn] When this Digimon would digivolve into a Digimon card with [Avian] or [Bird] in any of its traits, reduce the digivolution cost by 1
If theyve started with a few fetch lands and shock lands, youll be able to finish them off with four of these
I think Id put terapagos boufalant (represented by terapagos) and Flareon down a tier, and Id move Gardevoir up a tier