While not great in combat that is the secondary function of these cards which are mainly used to ramp mana without penalty earlier in the game than other colours can do so in order to gain a tempo advantage over the next few turns
Blink a planeswalker about to die to get more loyalty counters
This is still a very viable and powerful option, but I suspect that when it comes to decks that want to present a clock while being able to disrupt, Humans and Eldrazi would be the best bets for a budget minded list
Thassas Oracle While Laboratory Maniac is also a Wizard, its this two-mana Merfolk Wizard that deserves a spot on this list
(Until your next turn, those creatures attack each combat if able and attack a player other than you if able.) Whenever one or more creatures attack one of your opponents, those creatures gain menace until end of turn
These include many of WotC's experiments over the years, as well as expansions built for specific formats other than Standard