There are a bunch of high-impact blue creatures available in Historic and Timeless, including Atraxa, Grand Unifier and Agent of Treachery
Paradise Engine (reworking) Power 3 Design 6 Springleaf Drum in vehicular form
Because every order is custom-printed, standard changed my mind returns arent a fit
Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.), or one of the Ordeals from Theros, or
I love how it is a card you are happy to mill away or discard and I love that it is generic filler you can play to good effect in loads of decks
The 10 three-color combinations are: Abzan : White/Black/Green Bant : White/Blue/Green Esper : White/Blue/Black Grixis : Blue/Black/Red Jeskai : White/Blue/Red Jund : Black/Red/Green Mardu : White/Black/Red Naya : White/Red/Green Sultai : Blue/Black/Green Temur : Blue/Red/Green Four-color combinations The five four-color combinations technically also have special names, which come from a cycle of cards called Nephilim from the 2006 set Guildpact (part of the first Ravnica block)