More than just letting players draw or recycle their cards, they may accelerate energy build-up or even punish an enemy for attacking the player
Its not just because of Pokmons 30th anniversary - it's because the cards inside are hitting astronomical values
Despite not being shadowless, it is still a nice price for an older card that fills you with the nostalgia of stalling the match with its Scrunch Move
Each Pokemon can only have one Tool card attached at a time
Now of course, if you're not running ABUR duals and filters (since they are very expensive), Tango lands are perfectly fine in their place, perhaps with a couple fetches to grab them
Additionally, Thought Vessel also has a higher risk of being removed with an Artifact removal than Reliquary Tower, since not removing lands is an unspoken rule in Magic: The Gathering