I had a lot of card advantage, but every time I was about take total control, my opponent managed to finish me off with his faster deck with more burn
These will transform after you fulfill some kind of condition on the card, usually either an activated ability (i.e., paying to exile Terra, Magical Adept) or triggered ability (i.e., having six permanents in the yard for Exdeath, Void Warlock at end of turn)
If you are planning to print standard poker size cards, keeping these dimensions consistent will help your cards feel natural during gameplay
Other Builds I show you a more flash-oriented approach to maximize Ulaleks trigger
Announcing Knife and Death instantly locks all permanents in place on the battlefield
Beacon of Tomorrows is probably the fifth best one after actual Time Walk, casual favorite Time Warp, and its P3K and Portal variants, but three of those spells are only available for big bucks