Transgress the Mind (Battle for Zendikar): Thats not where hands go
Summon: LeviathanSummon: Leviathan, in particular, is extremely potent in such builds as it delivers a Whelming WaveWhelming Wave for its first chapter and then draws you a card whenever one of those creatures attacks (a trigger for each one, that is)
For the rest of the turn, if more creatures enter, you still get to scry more, which is great
Another option is maybe doing something like Sneak Attack out something huge, attack, then web-sling it back to your hand before the sacrifice
Take the Damage Yourself The last option is to just take the damage head-on
This helps keep your games more consistent, since you have more resources to use each turn