Trample When Mitotic Ultimus dies, conjure two cards named Mitotic Slime onto the battlefield
The name Ally itself implies that these are creatures that like to work together, and their designs certainly reflect that, because most Allies come with an ability that gets better the more allies you have in play
All you need to do is get eight extra wraiths in play and youre set up to attack with 9/9s
At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.) Instant Blink (CTRL to add secondary) Draw Ao, the Dawn Sky Flying, vigilance When Ao dies, choose one Look at the top seven cards of your library
Hatebears are 2 mana 2/2s that put some form of restriction on the opponent, and Gaddok Teeg does a great job making sure the opponent cannot remove your other creatures by locking out board clears like Wrath of God
Any "As [this creature] enters the battlefield" or "[This creature] enters the battlefield with" abilities of the copied creature will also work