Abilities that trigger "whenever players finish voting" trigger once all players have voted or once all secret votes are revealed, but they won't go on the stack until the current spell or ability finishes resolving
Ajani, Outland Chaperone We were 50/50 on including Ajani, Outland Chaperone on this list, but ultimately, a three-mana planeswalker who can fill the board with tokens or take down big early-to-mid-game creatures is hard to argue against, and we can see this being quite a heavily countered spell due to its potential impact
Just remember that Triskaidekaphobia also provides a consistent source of life gain or loss, depending on what your personal game plan is
Flash Photography hits whatever you need, and it can even do it at instant speed to boot
To put Bolshack Dragon's last ability another way, as long as it's attacking, it gets +1/+0 for each red card in your graveyard
Building around such a versatile engine often requires a robust mana base and utility pieces to ensure you can activate his abilities repeatedly