For example, if you put Null Profusion (an enchantment that says your maximum hand size is two) onto the battlefield and then put Venser's Journal onto the battlefield, you'll have no maximum hand size
(Diaboromon Tokens are level 6 white Digimon with a memory cost of 14, 3000 DP, and are Mega form, Unidentified type, and Unknown attribute.) [All Turns] When this Digimon would be deleted in battle, you may delete one of your other [Diaboromon] to prevent this Digimon from being deleted
Another great one is Alolan Exeggutor EX, which can instantly Knock-Out basic Pokemon, and considering Regidrago can take any attack from the discard pile, your opponent will need a spreadsheet to keep track of all the potential attacks this one Pokemon could use
You could pay for a Guttersnipe, but why not cycle that card into a free new card