Basically, YGO had very high print runs out of the gate so its not easy to compare it to MTG
The Pokmon Trading Card Game received a massive boom in production over the last year, resulting in over 9 billion new cards
Given her abilities cost only energy and not mana, untapping her does seem like a great goal
They won't stop the returned creature from entering the battlefield attacking
Doing that twice is very nice, but even better, if you're the Monarch when the ability triggers, you can cast any cards exiled with Court of Locthwain without paying their mana cost
The archetype certainly can be tuned to high-power tables, though play a high density of lifegain cards and creature tutors, and play your game aiming for a combo finish