{silent sentinel}
{sunbond}
{ordeal of heliod} x2
Place sunbond and an ordeal on the sentinel with one ordeal in hand and gain two life from a source. When you attack, a counter will be added, the ordeal will be sacrificed, then you will gain ten life and ten +1/+1 counters. Once this has occurred, play the other ordeal on sentinel. Now you have a loop that gains ten life and eleven +1/+1 counters on your sentinel each turn due to the sentinel's triggered ability. Enjoy
Even if you are using two ordeals?
Yes. Exactly.