Madame Web, Psionic Prophet

Defender

Other Hero creatures you control get +0/+1 and
have ward {1}.

Whenever an opponent casts their second spell each
turn, you may exile the top card of that players
library. Until the end of your next turn, you may
play that card. If you cast a spell this way, you may
choose to pay life equal to its mana value rather
than pay its mana cost.