ichikawa pokemon card illustrates Diancie for TCG Listed With Mascot. PSA 9 Mint Diancie Full

This can be a problem with these kinds of decks

Thats not to say that red decks cant search their libraries, just that they have limited options compared to some of the other colors

A savage hunter with a princes bearing

With this example you can target your opponent's halfling in attempt to have it deal damage to an elf, but if the halfling is sacrificed, then the spell sees no legal target and does nothing, including no Ring tempting

Similarly, the triggered ability will trigger separately for each source an opponent controls that deals damage to you or a permanent you control

The deck also uses beaters like Archangel of Thune to finally go on the offensive, and it relies on utility creatures like Grand Abolisher Giver of Runes to respond to enemy effects and strategies