There are plenty of ways to turn all your opponents creatures into Survivors, and even just blinking Varchild works well
If you want to lean into borrowing creatures, consider adding Insurrection to take all of them at once, and a couple of ways to sacrifice all of them
Can I Re-disguise a Card That has Already Been Played to the Battlefield and Flipped Over
and (B) give the Seller a tax invoice for any taxable supply made by the Company to the Seller under this agreement (including, without limitation, any supply for which the Seller's Commission, the Offer Fee, the Insurance Fee, and Expenses are consideration) including any amounts payable on account of GST in accordance with clause 23.2(a)
They are temporarily given a powerful card that is not normally included in their Deck, depending on the nature of their situation
"Pokmon Trading Card Game Pocket Announced, Brings the TCG to Mobile in 2024"