Hello all

As i have received different answers from judges to my questions in the past i will ask here in the forum.

Scenario 1:

I control a Leyline of Sancity.
OP controls a Eidolon of the Great Revel a Sulfuric Vortex and a Monastery Swiftspear.
He declares attackers and attacks me with both creatures, i response with Repeal targeting Eidolon.
Eidolon triggers (CMC Repeal on the stack = 3).
Do i get this damage in face of controlling the Leyline?

Oracle Text of Eidolon:
Whenever a player casts a spell with converted mana cost 3 or less, Eidolon of the Great Revel deals 2 damage to that player.

Oracle Text of Leyline:
If Leyline of Sanctity is in your opening hand, you may begin the game with it on the battlefield.
You have hexproof. (You can't be the target of spells or abilities your opponents control.)

I know that on Eidolon it's not written with "target" but this would just sound stupid "Eidolon of the Great Revel deals 2 damage to that target player"...
And Eidolons ability is controlled by my OP.

Same question belongs to Vortex.

Scenario 2:

I cast Thoughtseize and choose my OP.

a) OP has no cards in hand, do i loose live (little bit stupid i know)?
b) OP has only lands in hand, do i loose live because i can't choose lands and he discards nothing?

Thank you for all the constuctive answers!