If Twisted Fate attacks and is killed by a reaction spell, does his effect still resolve?

Ruling: Yes, Twisted Fate's effect still resolves even if he dies after triggering. Once an effect is placed on the chain, it resolves independently of whether the source unit is still alive.

Nuances:

• Effects that reference the unit itself (like "here" or "deal my might as damage") do require the unit to still be alive
• Red Card wouldn't work if TF is dead because it requires TF to be "here"
• Effects like "draw 1" and "stun an enemy unit" resolve fine with TF dead
• Effects like "when I leave the board" (deathknell, treasure trove) also need to work this way