The best combos to add to an existing deck are those that do not seem like combos at the time, but when put together, give you a win
Nothing else starts at -4 cards, but in 5 turns it'll be card advantage
My Verdict: Kaldra Compleat is powerful, but is held back both by its high cost and the efficiency of other equipment cards
Thanks to their flexibility and strong synergies, most warp cards will be excellent additions to your Limited deck
You may have to use some red tricks to cheat your vehicles into play, but there is no shortage of huge vehicles to throw at folks, a lot of which will also give you tokens and such before they shuffle off to the graveyard, eliminate a blocker, and convert Megatron
Thus, I can counter two spells with this one creature