ghost spider mtg card Ghost-Spider, Gwen Stacy its fine Card Titan - MTG cards

Freezing opposing cards in stasis prevents them from untapping, taking them out of the game for several turns

Both can draw a ton of cards relatively safely, since even if an opponent has an instant speed removal response on your biggest creature you'll still draw some cards if you have a second creature on the board

For 2 players

Rashmi, Eternities Crafter is a lovely draw engine and one of my favorite commanders, but it needs more instants

You can discard cards with outlets like Artist's Talent and Raffine, Scheming Seer to get a multitude of advantages

While not an important detail in all games, giving another blue player extra mana can open up the opportunity to derail your plans if youre caught by surprise