Infused Arrows
{4}
Artifact
Sunburst (This enters with a charge counter on it for each color of mana spent to cast it.)
{T}, Remove X charge counters from ~this~: Target creature gets -X/-X until end of turn.
Kyren Toy
{3}
Artifact
{1}, {T}: Put a charge counter on ~this~.
{T}, Remove X charge counters from ~this~: Add an amount of {C} equal to X plus one.