So you're going wide and then, well your creatures will inch up in power so long as you keep the party full
They only trigger when you are dealt damage, not when you lose life, so you can't be killed through their triggers
Samut, Voice of Dissent (Green/Red Flash Creature) [c]Samut, Voice of Dissent[/c] is an excellent flash creature, which also has double strike and haste
You could always wait three turns to cast that card, or use the Tenth Doctors ability, or any of the other cards with time travel on them, to speed up time a bit The Timey-Wimey deck is loaded with powerful cards, both new and reprints
Null Rod has significant splash damage versus Death and Taxes and Storm as well, turning off Aether Vial, equipment, Lotus Petal, and Lions Eye Diamond
The face commander of the deck is extremely powerful, though the deck itself isn't constructed in a way to really eke maximum value from the pair of Y'shtola's triggers