The attacking player chooses whether to tap a creature for an enlist ability immediately after they tap the creatures that they have chosen to attack with
Court Street Denizen, Subjugator Angel, Githzerai Monk white has plenty of repeatable and mass ways to tap stuff down
Sapphire and Steel can be a little trickier to manage if youre brand new to TCGs, due to its reliance on building up ink as quickly as possible - using the abilities of cards like Mickey Mouse, Detective, which allows you to add an extra card from your deck to your inkwell when played - to afford more expensive cards
This a beefy 5/4 for five mana that can swing and win games with a cool ability, so don't sleep on Twinblade Assassins
Thankfully, Pack Leader is more than just a basic +1/+1 lord to make up for this
The intricate anime art allows this version of Rhystic Study to stand out from the pack, and it has risen to claim the top spot in the weeks following Wilds of Eldraines release