competitive (and to protect its place among the best trading card games), restrictions and bans are used to rein in cards that create too much advantage too easily or shut down interaction in ways that make matches feel unfair
These decks regularly play a lot of draw spells to make sure you always have cards to cast in your hand, as running out of fuel for your strategy can be common if you're not careful
If multiple cards are put into the library this way (such as when the spell targets a melded permanent), that permanent's owner puts all the cards on top or all the cards on the bottom
A generic Simic big-mana strategy works great since it has token and big-creature subthemes worked in
Bloodhall Priest 2BR Creature Vampire Cleric 4/4 Whenever Bloodhall Priest enters the battlefield or attacks, if you have no cards in hand, Bloodhall Priest deals 2 damage to target creature or player
Because Curse costs 5 mana, you need to run it alongside cheaper answers to Infect