Gmoto,
That's the thing about combat tricks. One doesn't always need instants to do combat tricks. Just knowing when to use
indulgent aristocrat's ability is the trick. Changing any creature's power and toughnes by +1 permanently makes a diffrence.
With the 4 phases during combat, when to utilize such tricks can win or lose you the game.
An example: You attack with
indulgent aristocrat and
blisterpod, 2 mana open. Opponent has a 1/1 to block with. How and if he chooses to block makes you decide if you'd use
indulgent aristocrat's ability. Say he chooses not to, the question you'd have to as is? Do I sacrifice and do 2 damage while gaining 2 life or not sacrifice while still doing 2 damage but gain 1 life?
Or should I just attack with
indulgent aristocrat in hopes he blocks and then sacrifice? Saving
indulgent aristocrat from dying but killing his creature and still gain 2 life. One could also stack 2 sacrifices if there is 4 open mana and 2 creatures.