The only way to get them on the battlefield is when a card says "open an Attraction" (like Myra the Magnificent), which lets you put the top Attraction from your deck on to the battlefield
Duplicant, Meteor Golem, Kozilek, the Great Distortion, Ugin, the Ineffable, Spatial Contortion, Warping Wail, Titan's Presence, Desecrate Reality, Rise of the Eldrazi, Unstable Obelisk, Steel Hellkite 11 targeted removal
The ability changes depending on whether youre on offense or defense, it reworks the combat damage assignment process, and generally is just a total headache to correctly navigate
For three-mana, you get a 4/4 indestructible Soldier each of your turns, but which can be attacked and killed by attacking him on your turn
This is a mana-heavy card, coming in at seven generic and two black