In addition to giving you the option to switch your Active Pokmon with 1 of your Benched Pokmon, you have the option to instead have your Pokmons attacks to 30 more damage against Pokmon V (V, VMAX, VSTAR, and V-UNION) and Pokmon ex during the turn that Kieran is played
These elements require careful consideration of the overall deck strategy
That lets you lock down blockers, untap your own lands, or mess with opponents' manathe kind of utility that adds real depth to your game play
Cyclonic Rift (Return to Ravnica) Threats-be-gone Is there anything worse than staring down an army of creatures, artifacts, planewalkers and enchantments
The first copy of Risk Factor is usually pretty easy to ignore and you just take the four damage instead of giving the opponent three cards, but with jump-start its usually pretty difficult to take another four damage and still survive the early pressure or other burn spells red decks can put together