Teyo, Geometric Tactician's last ability doesn't affect creatures that enter the battlefield attacking
Combining it with Fastbond Not only is this an incredibly strong way to continuously play additional lands for little cost, but there are all kinds of loops you can pull off with cards like Flash In cEDH, so many games were coming down to Golos, Tireless Pilgrim Griselbrand Cheating out a Hullbreacher This is an incredibly unfun card that stifled a popular part of Commander, spiked the popularity of wheel effects, and made an outrageous number of Treasure tokens
From a win con to sacrifice and card draw fodder, this is just so good in all of the places
So what are your favorite cards that sport both colors
Now I can only do it with my real cards at my local card shop
It will be available through set boosters, collector boosters, a starter kit product, and a bundle